Match List-I with List-II with respect to human eye.
List-I | Listell | ||||||||
A. | Fovea | (i) |
| Visible coloured portion of eye | that regulates diameter of pupil. | ||||
Visible coloured portion of eye | |||||||||
that regulates diameter of pupil. | |||||||||
B. | Iris | (ii) |
| External layer of eye formed of | dense connective tissue. | ||||
External layer of eye formed of | |||||||||
dense connective tissue. | |||||||||
C. | Blind spot | (iii) |
| Point of greatest visual acuity or | resolution. | ||||
Point of greatest visual acuity or | |||||||||
resolution. | |||||||||
D. | Sclera. | (iv) |
| Point where optic nerve leaves | the eyeball and photoreceptor | cells are absent. | |||
Point where optic nerve leaves | |||||||||
the eyeball and photoreceptor | |||||||||
cells are absent. |
Choose the correct answer from the options given below:
Text Solution
Verified by ExpertsNOT AVAILABLE
The fovea is a thinned-out portion of the retina where only the cones are densely packed. It is the point where the visual acuity (resolution) is the greatest. The visible colored portion of the eye is iris. The diameter of the pupil is regulated by the muscle fibres of iris. Blind spot contains no photoreceptor cells. It is also a region where the optic nerves leave the eye and the retinal blood vessels enter it. The external layer of an eyeball is composed of a dense connective tissue and is called the sclera.
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