tag:blogger.com,1999:blog-18129560661060573492024-03-05T04:17:04.171-08:00The World Through Our SensesTeachers Low:http://www.blogger.com/profile/10121393676783799587noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-1812956066106057349.post-72755093840509400602012-12-12T01:36:00.000-08:002012-12-12T18:24:05.718-08:00Lets try your Understanding<!--[if !mso]>
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<h2>
<span style="font-size: large;">Exercises</span></h2>
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<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%;">Figure 1 show the structure of the
human eye.</span></b></div>
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<span style="mso-no-proof: yes;"></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijowEFuo-B5FCRoTBOiKWTXCfsGbGG2LytbkfUFX8Qi7IiA0M2mtLh0818XyiMeUInVNLUhM4jut0_aIExyOJVnXOZ6rT2vLE_v1yYP7DlymHGUwa1P5FYwB9DSsfQRhaJtsg-gJZH/s1600/eye.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="264" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEijowEFuo-B5FCRoTBOiKWTXCfsGbGG2LytbkfUFX8Qi7IiA0M2mtLh0818XyiMeUInVNLUhM4jut0_aIExyOJVnXOZ6rT2vLE_v1yYP7DlymHGUwa1P5FYwB9DSsfQRhaJtsg-gJZH/s320/eye.jpg" width="320" /></a></div>
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<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 115%; mso-bidi-font-size: 11.0pt;">Figure 1</span></b></div>
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<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">a)<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: EN-US; mso-bidi-font-size: 11.0pt; mso-bidi-language: AR-SA; mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN; mso-fareast-theme-font: minor-fareast;">Label the
structure of the eye with the following words:</span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;">retina<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;">lens<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;">blind spo<span style="font-size: small;">t</span></span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;">yellow spot</span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;">pupil<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 115%; mso-bidi-font-size: 11.0pt;">iris<span style="mso-tab-count: 2;"> </span></span></div>
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<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">b)<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: EN-US; mso-bidi-font-size: 11.0pt; mso-bidi-language: AR-SA; mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN; mso-fareast-theme-font: minor-fareast;">State the
function of</span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;">cornea<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;">ciliary muscles<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;">aqueous humour<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: Symbol; font-size: 12.0pt; line-height: 115%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 115%; mso-bidi-font-size: 11.0pt;">sclera</span></div>
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<div class="MsoListParagraphCxSpLast" style="line-height: 150%; margin-left: 27.0pt; mso-add-space: auto; mso-list: l5 level1 lfo1; text-indent: -.25in;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">c)<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">What is a blind
spot?</span></div>
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<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">Figure 2 shows
the cross-section of the human ear. </span></b></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZV_oTLqnwRL4ZXeIGfPuOqgcHMqMTKOz5BiqXpf7-2ANPC6JYxpswjgwqyyGbmDOb6jxe8qDe-R0m4GWZEOEQbXU2NyfkWLc5EXYpPxoOgRAotwFD72xYH5sTDs0whu60cqkHDwkI/s1600/ear.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="267" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiZV_oTLqnwRL4ZXeIGfPuOqgcHMqMTKOz5BiqXpf7-2ANPC6JYxpswjgwqyyGbmDOb6jxe8qDe-R0m4GWZEOEQbXU2NyfkWLc5EXYpPxoOgRAotwFD72xYH5sTDs0whu60cqkHDwkI/s400/ear.jpg" width="400" /></a></div>
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<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 115%; mso-bidi-font-size: 11.0pt; mso-no-proof: yes;"></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 115%; mso-bidi-font-size: 11.0pt;"></span></div>
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<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 115%; mso-bidi-font-size: 11.0pt;">Figure 2</span></b></div>
<div class="MsoListParagraphCxSpFirst" style="line-height: 150%; margin-left: 27.0pt; mso-add-space: auto; mso-list: l1 level1 lfo4; text-indent: -.25in;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">a)<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">Label the
structure of the ear:<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">1.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">2.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">3.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">4.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">5.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">6.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">______________________</span></div>
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<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: EN-US; mso-bidi-font-size: 11.0pt; mso-bidi-language: AR-SA; mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN; mso-fareast-theme-font: minor-fareast;"><br clear="all" style="mso-break-type: section-break; page-break-before: auto;" />
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<div class="MsoListParagraphCxSpMiddle" style="line-height: 150%; margin-left: 27.0pt; mso-add-space: auto; mso-list: l1 level1 lfo4; text-indent: -.25in;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">b)<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">State the
function of the</span></div>
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<span style="font-family: Symbol; font-size: 12.0pt; line-height: 150%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">semicircular
canals</span></div>
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<span style="font-family: Symbol; font-size: 12.0pt; line-height: 150%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">Eustachian tube</span></div>
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<span style="font-family: Symbol; font-size: 12.0pt; line-height: 150%; mso-bidi-font-family: Symbol; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: Symbol;"><span style="mso-list: Ignore;">·<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">cochlea</span></div>
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<span style="height: 185px; left: 0px; margin-left: 432px; margin-top: 38px; mso-ignore: vglayout; position: absolute; width: 119px; z-index: 2;"></span><b style="mso-bidi-font-weight: normal;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">Figure 3 shows
the structure of the human skin.</span></b></div>
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<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgae42kaNETGN4PwsuWHNU9KXpzgGJGkD-7jGusDSlozcfvl9hCSxEDH5SX-hEp2YaRLyJ-1Z2TSLU8lfxWobbKuxoMvJ4NeBku-QnXeF-FjoWqF7UHQvw8yS7yQn9Fx7IbmUM0f0Lc/s1600/ScreenHunter_81+Dec.+12+18.43.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="252" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgae42kaNETGN4PwsuWHNU9KXpzgGJGkD-7jGusDSlozcfvl9hCSxEDH5SX-hEp2YaRLyJ-1Z2TSLU8lfxWobbKuxoMvJ4NeBku-QnXeF-FjoWqF7UHQvw8yS7yQn9Fx7IbmUM0f0Lc/s400/ScreenHunter_81+Dec.+12+18.43.jpg" width="400" /></a></div>
<div align="center" class="MsoNormal" style="line-height: 150%; margin-left: 27.0pt; text-align: center;">
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">Figure 3</span></b></div>
<div class="MsoListParagraphCxSpFirst" style="line-height: 150%; margin-left: 27.0pt; mso-add-space: auto; mso-list: l2 level1 lfo3; text-indent: -.25in;">
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">a)<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">Label the
structure of the ear:<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">1.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">2.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">3.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">4.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">5.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">6.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">7.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">8.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">9.<span style="font: 7.0pt "Times New Roman";">
</span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">10.<span style="font: 7.0pt "Times New Roman";"> </span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";">______________________<span style="mso-list: Ignore;"> </span></span><br />
<span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt; mso-fareast-font-family: "Times New Roman";"><span style="mso-list: Ignore;">11.<span style="font: 7.0pt "Times New Roman";"> </span></span></span><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-bidi-font-size: 11.0pt;">______________________</span></div>
</div>
<b style="mso-bidi-font-weight: normal;"><span style="font-family: "Times New Roman","serif"; font-size: 12.0pt; line-height: 150%; mso-ansi-language: EN-US; mso-bidi-font-size: 11.0pt; mso-bidi-language: AR-SA; mso-fareast-font-family: 新細明體; mso-fareast-language: ZH-CN; mso-fareast-theme-font: minor-fareast;"></span></b><span style="font-size: large;"><br /></span>
<span style="font-family: ""serif"","serif"; font-size: large;">*Remember to try first before
you refer to the notes given. </span><br />
<span style="font-family: ""serif"","serif"; font-size: large;"> Check your answer from the notes
given in front. </span><br />
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Teachers Low:http://www.blogger.com/profile/10121393676783799587noreply@blogger.com0tag:blogger.com,1999:blog-1812956066106057349.post-70088881620569607342012-12-10T22:41:00.005-08:002012-12-12T18:25:49.175-08:00Sense of Sight<br />
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The structure of eyes </h2>
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<table border="1" cellpadding="0" cellspacing="0" class="MsoTableGrid" style="border-collapse: collapse; border: none; margin-left: 6.75pt; margin-right: 6.75pt; text-align: center;"><tbody>
<tr><td style="border: 1pt solid windowtext; padding: 0in 5.4pt; text-align: left; width: 162.9pt;" valign="top" width="217"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;"><b>Structure of eyes</b></span></div>
</td><td style="border-image-source: none; border-style: solid solid solid none; border-width: 1pt 1pt 1pt medium; padding: 0in 5.4pt; text-align: left; width: 315.9pt;" valign="top" width="421"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-size: small;"><b><span style="font-family: Georgia, Times New Roman, serif;">Function</span></b></span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Suspensory ligament</span></div>
</td><td style="border-style: none solid solid none; border-width: medium 1pt 1pt medium; padding: 0in 5.4pt; text-align: left; width: 315.9pt;" valign="top" width="421"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- holds the lens in its position</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Ciliary muscles (ciliary body)</span></div>
</td><td style="border-style: none solid solid none; border-width: medium 1pt 1pt medium; padding: 0in 5.4pt; text-align: left; width: 315.9pt;" valign="top" width="421"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- change the thickness of the lens</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Iris</span></div>
</td><td style="border-style: none solid solid none; border-width: medium 1pt 1pt medium; padding: 0in 5.4pt; text-align: left; width: 315.9pt;" valign="top" width="421"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- controls the amount of light entering the eye</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Pupil</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- the central opening formed by the iris</span><br />
<span style="font-family: Georgia, 'Times New Roman', serif; font-size: small;">- </span><span style="font-family: Georgia, 'Times New Roman', serif; font-size: small;">allows light rays to enter the eye</span></div>
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<tr><td style="border-image-source: none; border-style: none solid solid; border-width: medium 1pt 1pt; padding: 0in 5.4pt; text-align: left; width: 162.9pt;" valign="top" width="217"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Cornea</span></div>
</td><td style="border-style: none solid solid none; border-width: medium 1pt 1pt medium; padding: 0in 5.4pt; text-align: left; width: 315.9pt;" valign="top" width="421"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- helps to focus light rays onto the retina</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Aqueous humour</span></div>
</td><td style="border-style: none solid solid none; border-width: medium 1pt 1pt medium; padding: 0in 5.4pt; text-align: left; width: 315.9pt;" valign="top" width="421"><div class="MsoNormal" style="line-height: 18px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- a transparent liquid which fills the space between the </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;"><span style="font-size: small;"><b> </b></span>lens and</span><span style="font-family: Georgia, Times New Roman, serif; font-size: small;"> the cornea</span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small; line-height: 24px;">- maintains the shape of the eye and helps to refract </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small; line-height: 24px;"><span style="font-size: small;"> </span>light rays</span></div>
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<tr><td style="border-image-source: none; border-style: none solid solid; border-width: medium 1pt 1pt; padding: 0in 5.4pt; text-align: left; width: 162.9pt;" valign="top" width="217"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Lens</span></div>
</td><td style="border-style: none solid solid none; border-width: medium 1pt 1pt medium; padding: 0in 5.4pt; text-align: left; width: 315.9pt;" valign="top" width="421"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- bends and focuses light rays onto the retina</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Blind spot</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- the region of the retina that lacks receptors</span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- the part of the retina that is not sensitive to light</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Choroid</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- contains a lot of blood vessels and black pigments</span><span style="font-family: Georgia, Times New Roman, serif; font-size: small;"> </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- blood vessels provide nutrients and oxygen to the eye</span><span style="font-family: Georgia, Times New Roman, serif; font-size: small; line-height: 18px;"> </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small; line-height: 18px;">- the black pigments absorb light and prevent reflection </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small; line-height: 18px;"><span style="font-size: small;"> </span>of light </span><span style="font-family: Georgia, Times New Roman, serif; font-size: small;">in the eye</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Optic nerve</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- connects the retina to the brain</span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- sends impulses from the retina to the brain for </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;"><span style="font-size: small;"> </span>processing</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Fovea (yellow spot)</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- the part of retina that is most sensitive towards light</span></div>
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<tr><td style="border-image-source: none; border-style: none solid solid; border-width: medium 1pt 1pt; padding: 0in 5.4pt; text-align: left; width: 162.9pt;" valign="top" width="217"><div class="MsoNormal" style="line-height: 24px; margin-bottom: 0.0001pt;">
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Retina</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- formed by millions of light-sensitive cells</span><span style="font-family: Georgia, Times New Roman, serif; font-size: small;"> </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- responds to light rays</span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- enables image formation</span><span style="font-family: Georgia, Times New Roman, serif; font-size: small;"> </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- sends impulses to the brain using the optic nerve</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Sclera</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- protects and maintains the shape of the eye</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">Vitreous humour</span></div>
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<span style="font-family: Georgia, Times New Roman, serif; font-size: small;">- a transparent jelly-like substance which fills the </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small;"><span style="font-size: small;"> </span>space</span><span style="font-family: Georgia, Times New Roman, serif; font-size: small;"> between the lens and the retina</span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small; line-height: 24px;">- maintains the shape of the eye and helps to refract </span><br />
<span style="font-family: Georgia, Times New Roman, serif; font-size: small; line-height: 24px;"> light rays </span></div>
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<span style="font-size: large;"><b>Video with task: </b><a href="http://goanimate.com/videos/0CGAYlNsbkNY/1" target="_blank">How to take care our eyes</a> </span></div>
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<span style="font-size: large;">After watching the video, discuss with your friend and list out 5 ways on how to <span style="font-size: large;">take care</span> our eyes.</span></div>
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<b> <a href="http://www.slideshare.net/PandaSnake/how-we-see-things-15613978" target="_blank" title="How we see things">How we see things</a> </b> from <b><a href="http://www.slideshare.net/PandaSnake" target="_blank">PandaSnake</a></b> </div>
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Teachers Low:http://www.blogger.com/profile/10121393676783799587noreply@blogger.com0tag:blogger.com,1999:blog-1812956066106057349.post-18768825112414385312012-12-10T22:41:00.003-08:002012-12-11T17:10:53.835-08:00Sense of Hearing<br />
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<span style="font-size: large;">The structure of ear</span></h2>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;"><b>Parts of Ear<o:p></o:p></b></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;"><b>Function</b></span><span style="font-family: Times New Roman, serif;"><o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Pinna<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Collects sound waves<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Ear canal<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Directs sound waves to the eardrum<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Ear drum<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Vibrates when hit by sound waves<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Ossicles<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Make the vibrations of sound stronger<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Cochlea<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Contains fluid and receptors, changes sound vibration into impulses.<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Auditory nerve<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Carries impulses to brain<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Balance canal (semicircular canal)<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Contain fluid, helps us keep our balance<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Eustachian tube<o:p></o:p></span></span></div>
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<span lang="EN-US" style="font-size: 13.5pt;"><span style="font-family: Georgia, Times New Roman, serif;">Keep air pressure equal on both sides of eardrum.</span></span></div>
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<span style="font-family: inherit; font-size: large;">Watch this video to understand how we hear: </span><a href="http://goanimate.com/videos/0_nmLcnUY5SA?utm_source=linkshare" style="font-family: inherit; font-size: x-large;" target="_blank">Hearing Process</a></h4>
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<span style="font-family: Georgia, 'Times New Roman', serif; font-size: large;">Summary of Hearing Process </span><span style="font-family: Georgia, 'Times New Roman', serif; font-size: x-small;">(click the picture to enlarge)</span><br />
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<a href="http://teacherlow.blogspot.com/2012/09/the-world-through-our-senses.html"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiTv9fRkHgPQhgXcJpnNzv_6fXHvNiUhwYJci8qA6iBzy1XksW6RgQBFgakrWneGH4M-msGKckMKLiLpnfEGLEnPGBWlOa_RE80O7wg155JVh_HqH5EqQvkl6TAqbUwnbqnnLdKFrd1/s1600/HOME.jpg" /></a></div>
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Teachers Low:http://www.blogger.com/profile/10121393676783799587noreply@blogger.com1tag:blogger.com,1999:blog-1812956066106057349.post-15195294823225212812012-12-10T22:40:00.008-08:002012-12-11T17:15:43.751-08:00Sense of Taste<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyV5QHAVfYlX89rtw4lefjmMMv-WxhoOpxQLu3dAKcexbiUsLHUdwSaQBvTnRCEoEPalV-cWya1975Tt_UuEnB83WnBWn9rdjhB3pmbxA7I_AESe78v0sZEn6YbNtF4uFlVJWNTgZx/s1600/funny20.gif" imageanchor="1" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhyV5QHAVfYlX89rtw4lefjmMMv-WxhoOpxQLu3dAKcexbiUsLHUdwSaQBvTnRCEoEPalV-cWya1975Tt_UuEnB83WnBWn9rdjhB3pmbxA7I_AESe78v0sZEn6YbNtF4uFlVJWNTgZx/s1600/funny20.gif" /></a><br />
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<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">The tongue is sensory organ that can detect <b>sweet, bitter, sour </b>and<b> salty tastes</b>.</span></li>
<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">Other kinds of taste are the combinations of these four major tastes.</span></li>
<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">Different areas of the tongue are sensitive to different types of tastes.</span></li>
<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">Picture below show the parts of the tongue that respond to different types of tastes.</span></li>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjj3SD1e7ivYk6TyWxdfLMWZ3ijuNtXOlS0MawCGiBP63Mm_judpuqENteqJTKG_jnd4NyU-mll_Hno45_Bp-HtTj9tlqYs6Su7OrDvqi2ebGqKp6v_lJJ-Y4vyhf7jwWI67bivzgnzzbY/s1600/tongue.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="263" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjj3SD1e7ivYk6TyWxdfLMWZ3ijuNtXOlS0MawCGiBP63Mm_judpuqENteqJTKG_jnd4NyU-mll_Hno45_Bp-HtTj9tlqYs6Su7OrDvqi2ebGqKp6v_lJJ-Y4vyhf7jwWI67bivzgnzzbY/s400/tongue.jpg" width="400" /></a> </div>
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<span style="font-family: 'Times New Roman', serif; font-size: medium;"><br /></span><span style="font-family: 'Times New Roman', serif; font-size: large;">Without sense of smell, it will influence our appetite. We cannot fully enjoy the flavours of food and drinks.</span></h3>
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<span style="font-family: 'Times New Roman', serif; font-size: large;">Example: </span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5kex04An99IxJmCotdYtcRQIVgnrr0lTbM0uHru1jcRFStof_Hzc1OykXOg9Ul8MRSpWZcYDmWHLNsdW8mZL9OwgdpLY7z4TzJrHJzEGmbsOWrJ9TYDvIDjiZkI2LXGapYxWsq0acWdw/s1600/taste+and+smell.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="640" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg5kex04An99IxJmCotdYtcRQIVgnrr0lTbM0uHru1jcRFStof_Hzc1OykXOg9Ul8MRSpWZcYDmWHLNsdW8mZL9OwgdpLY7z4TzJrHJzEGmbsOWrJ9TYDvIDjiZkI2LXGapYxWsq0acWdw/s640/taste+and+smell.jpg" width="547" /></a></div>
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Teachers Low:http://www.blogger.com/profile/10121393676783799587noreply@blogger.com0tag:blogger.com,1999:blog-1812956066106057349.post-45858025821835065292012-12-10T22:40:00.003-08:002012-12-11T17:12:16.484-08:00Sense of Smell<br />
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<li><span lang="EN-US" style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">Our</span><span lang="EN-US" style="font-family: 'Times New Roman', serif; font-size: 13.5pt;"> nose is the sensory organ that enables us to smell.</span></li>
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<h4>
<span style="font-family: Times New Roman, serif; font-size: medium;">Structure of Nose</span></h4>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE0bTMAm_4hFmBSNiI9QrO6DGLz01wcxcdj4Ugw21FtKj8b8fy5hMt11l5LYXO-Q3xNNezjotY706yzPXwYqZ4OD7oIMGho0J3AiIzQWzyz7pfFRVsxFPF1ajLGTybpo_u0-FTF5u-w1s/s1600/nose.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="227" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiE0bTMAm_4hFmBSNiI9QrO6DGLz01wcxcdj4Ugw21FtKj8b8fy5hMt11l5LYXO-Q3xNNezjotY706yzPXwYqZ4OD7oIMGho0J3AiIzQWzyz7pfFRVsxFPF1ajLGTybpo_u0-FTF5u-w1s/s400/nose.jpg" width="400" /></a></div>
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<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">The sensory cells which respond to the stimulus of smell are located in the roof of the nasal cavity.</span></li>
<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">These receptors are covered with the mucus, which dissolves airborne chemicals.</span></li>
<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">When chemicals dissolve in the mucus, the sensory cells will send a message (nerve impulses) to the brain for identifying the kind of smell detected. </span></li>
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<span style="font-family: 'Times New Roman', serif; font-size: large;">Reason of Running Nose</span></h3>
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Teachers Low:http://www.blogger.com/profile/10121393676783799587noreply@blogger.com0tag:blogger.com,1999:blog-1812956066106057349.post-23651339216011292972012-12-10T22:39:00.005-08:002012-12-11T17:11:59.955-08:00Sense of Touch<br />
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<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">Our skin is sensory organ that can detect stimuli such as pain, pressure, touch, heat and cold.</span></li>
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<span style="font-size: 13.5pt;"><span style="font-family: Verdana, sans-serif;">Structure of the Human Skin</span></span></div>
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<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">Our skin consists of two main layers: </span><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">Epidermis (outer layer) </span><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">and Dermis (inner layer)</span></li>
<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">There are 5 types of receptors in our skin. Can you identify them in the figure above?</span></li>
<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">Each type of receptor is sensitive to a different stimulus.</span></li>
<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">The skin at different body parts is not equally sensitive to stimuli. The skin of some body parts is more sensitive than that of other body part.</span></li>
<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt;">Such difference is due to the different<b> thickness of the epidermis</b> and different <b>numbers of receptors</b> in the skin.</span></li>
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<span style="font-family: Times New Roman, serif; font-size: medium;"><br /></span><span style="font-family: 'Times New Roman', serif; font-size: large;">Watch the following video: </span><a href="http://goanimate.com/videos/0b7tC907bA34?utm_source=linkshare" style="font-family: 'Times New Roman', serif; font-size: x-large;" target="_blank">Skin sensitivity</a></h3>
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<span style="font-family: 'Trebuchet MS', sans-serif;">After watching the video, can you identify which parts of our body part have great sensitivity and less sensitivity? </span></h4>
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How sensitive are you? Try out this simple experiment.</span></h3>
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<span style="clear: left; color: black; float: left; margin-bottom: 1em; margin-right: 1em;"><b style="background-color: #f3f3f3;">What did you find?</b></span></div>
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjkqzzkUcjkZkV7r3Zb4x4Ry53m4kvWwXUUT-bNDYdZHKo-scwY_-gVXTnb9TF7UsdD0Mu9asU8zzM2NzeV4LNANYGD5ycX3iRGYDgyDm6PQuwvDQp2GpU8dFT7z6sTH6o5zXI9VoNXK10/s1600/touch+experiment.png" imageanchor="1"><span style="background-color: #f3f3f3; clear: left; color: black; float: left; margin-bottom: 1em; margin-right: 1em;">On some parts of the body, such as the index finger is more sensitive. This means that the volunteer has more sensory receptors in that part of their body. Sensory receptors are specialised cells. They detect changes in the environment, called stimuli, and turn them into electrical impulses. In this case, the sensory receptors are detecting pressure. Sensory neurones - nerve cells - carry these electrical impulses to the spinal cord and brain.</span></a><span style="background-color: #f3f3f3; clear: left; color: black; display: inline !important; float: left; margin-bottom: 1em; margin-right: 1em; text-align: center;">To be really sensitive, each sensory receptor must connect to a different nerve cell.</span></div>
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Teachers Low:http://www.blogger.com/profile/10121393676783799587noreply@blogger.com0tag:blogger.com,1999:blog-1812956066106057349.post-57585595656118466182012-12-10T22:39:00.001-08:002012-12-11T17:07:01.155-08:00The Sensory Organs and their Function<br />
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<ul><ul type="disc">
<li class="MsoNormal" style="text-align: left;"><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 13.5pt;">The <b>skin, nose, tongue, ears </b>and<b> eyes</b> are our sensory organs.<o:p></o:p></span></li>
<li class="MsoNormal" style="text-align: left;"><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 13.5pt;">They enable us to use our senses of<b> touch, smell, taste, hearing </b>and<b> sight </b>to detect changes in our environment.<o:p></o:p></span></li>
<li class="MsoNormal" style="text-align: left;"><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 13.5pt;">Our senses are our abilities to detect changes in our environment.</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 13.5pt;"><o:p></o:p></span></li>
<li class="MsoNormal" style="text-align: left;"><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 13.5pt;">The changes in our environments are called stimuli (singular: stimulus).</span><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 13.5pt;"><o:p></o:p></span></li>
<li class="MsoNormal" style="text-align: left;"><span lang="EN-US" style="font-family: "Times New Roman","serif"; font-size: 13.5pt;">Table below shows the connection between the five senses, the sensory organs and the stimuli.</span></li>
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<span style="font-family: Arial, Helvetica, sans-serif;"><b><span lang="EN-US" style="font-size: 12pt;">Sensory</span></b><b><span lang="EN-US" style="font-size: 12pt;"> Organs<o:p></o:p></span></b></span></div>
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<b><span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Senses<o:p></o:p></span></b></div>
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<b><span lang="EN-US" style="font-size: 12pt;"><span style="font-family: Arial, Helvetica, sans-serif;">Stimuli</span><span style="font-family: Lucida Calligraphy;"><o:p></o:p></span></span></b></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Skin<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Touch<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Pain, Cold, cheat, Pressure<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Nose<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Smell<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Chemicals<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Tongue<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Taste<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Chemicals<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Ear<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Hearing<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Sound<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Eye<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Sight<o:p></o:p></span></div>
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<span lang="EN-US" style="font-family: Arial, Helvetica, sans-serif; font-size: 12pt;">Light</span></div>
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<li><span lang="EN-US" style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">When a stimulus is detected by our sensory organs, a<b> message</b> is sent to the </span><b style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">brain</b><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;"> trough our </span><b style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">nerves</b><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">.</span></li>
<li><span lang="EN-US" style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">The <b>brain</b> is the<b> centre of control</b> of our response.</span></li>
<li><span lang="EN-US" style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">The brain interprets the message and tells our body how to respond to the stimulus.</span></li>
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<span lang="EN-US" style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">P</span><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">athway from stimulus to response can be simplified as follow:</span></h4>
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<li><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-align: center; text-indent: -18pt;">The nerves that carry messages from the sensory organs to the brain are called </span><b style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-align: center; text-indent: -18pt;">sensory nerves</b><span style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-align: center; text-indent: -18pt;">.</span></li>
<li><span lang="EN-US" style="font-family: Symbol; font-size: 10pt; text-indent: -18pt;"><span style="font-family: 'Times New Roman'; font-size: 7pt;"> </span></span><span lang="EN-US" style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">The nerves that carry messages from the brain to the muscles are called <b>motor nerves</b>.</span></li>
<li><span lang="EN-US" style="font-family: 'Times New Roman', serif; font-size: 13.5pt; text-indent: -18pt;">Example:</span></li>
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