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The size of pupil is controlled by the...

The size of pupil is controlled by the

A

Ciliary muscles

B

Suspensory ligaments

C

Cornea

D

Iris muscles

Text Solution

Verified by Experts

The correct Answer is:
D
The iris is composed of a pigmented epithelium, the anterior muscle and the dilator muscle. The sphincter and dilator are both smooth muscle. The sphincter muscle contract and relax in response to amount of light entering through pupil.
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