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NNL Awaitin The Unexpected Topics: 779 Posts: 6613	Mar 30, 2007 - 9:03 AM       #1 What specific part of the eye is mainly responsible for acute vision ? a) zonnule of Zinn b) limbus c) optic disc d) macula e) fovea
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oldkidontheblock Forum Guru Topics: 66 Posts: 981	Mar 30, 2007 - 9:45 AM       #2 macula?
keepgoing ..... Topics: 109 Posts: 1865	Mar 30, 2007 - 9:50 AM       #3 maybe e or d
NNL Awaitin The Unexpected Topics: 779 Posts: 6613	Mar 30, 2007 - 12:45 PM       #4 KG.................... Choose One Answer,
me007 Forum Guru Topics: 72 Posts: 781	Mar 30, 2007 - 12:46 PM       #5 e. fovea centralis - within macula, only cones, highest acuity vision
NNL Awaitin The Unexpected Topics: 779 Posts: 6613	Mar 30, 2007 - 2:23 PM       #6
NNL Awaitin The Unexpected Topics: 779 Posts: 6613	Mar 30, 2007 - 2:23 PM       #7 The correct answer is E Explanation The fovea lies slightly below and to one side of the optic disk. It is found in the centre of a shallow depression or pit (the macula). Only cones are present at the fovea, which is an area approximately 0.2 mm in diameter: all other parts of the retina including blood vessels are pushed aside. The cones here have individual connections with the bipolar and ganglion cells, hence the fovea gives us our most sensitive and acute vision.
mytime Go Marching in! Topics: 40 Posts: 3161	Mar 30, 2007 - 2:57 PM       #8
NNL Awaitin The Unexpected Topics: 779 Posts: 6613	Mar 30, 2007 - 3:00 PM       #9
keepgoing ..... Topics: 109 Posts: 1865	Mar 30, 2007 - 11:08 PM       #10 sorry NNL next time will post one ans only...but i wud have chosn e b/c OKOTB already had chosn d thanks
NNL Awaitin The Unexpected Topics: 779 Posts: 6613	Mar 30, 2007 - 11:10 PM       #11 lol ok ok i thought u were online at that n thinking u will reply but i think u had gone.
keepgoing ..... Topics: 109 Posts: 1865	Mar 30, 2007 - 11:14 PM       #12
Drhouse127 Forum Newbie Topics: 2 Posts: 37	Nov 07, 2009 - 11:11 AM       #13 yes its E fovea. THe site on the retina where visual acuity is highest is is the fovea centralis, a small depression at the center of a yellowish area ,the macula lutea.REtina in fovea centralis (diameter 5mm)is particualarly thin at this site and contains the largest concentration of cone cells.
felix2 Forum Newbie Topics: 0 Posts: 7	Dec 07, 2009 - 1:34 PM       #14 definitly fovea.

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