The size of the pupil is regulated by muscles in the
A) ciliary body
B) iris
C) lens
D) cornea
E) conjunctiva

Name: The size of the pupil is regulated by muscles in the A) ciliary body B) iris C) lens D) cornea E) conjunctiva
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Question

Quizplus · Accepted Answer

The size of the pupil is regulated by the iris, specifically by the iris sphincter muscle and the iris dilator muscle. The iris sphincter muscle constricts the pupil, making it smaller, while the iris dilator muscle expands the pupil, making it larger.

The Size of the Pupil Is Regulated by Muscles in the