Which the following statement is correct regarding label X?
A) It is the opening in lens that permits light into the inner chambers of the eye.
B) It is the coloured portion of vascular tunic.
C) It is a biconcave structure that changes shape to bring objects into focus.
D) It is thick, jelly-like substance in the posterior compartment of the eye.
Correct Answer: B
Solution :
[b] In the given figure of human eye, the part marked as "X" is iris. The iris is a thin, circular structure in the eye which is responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina. The colour of the iris gives the eye its colour.
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