What structure regulates the amount of light passing to the visual receptors of the eye?
A)lens
B)cornea
C)aqueous humor
D)iris

Question

Quizplus · Accepted Answer

The iris is a muscle structure that controls the size of the pupil, which regulates the amount of light entering the eye. When the iris contracts, the pupil becomes smaller, reducing the amount of light that enters the eye. Similarly, when the iris expands, the pupil becomes larger, allowing more light to enter the eye. Therefore, the iris is responsible for regulating the amount of light passing to the visual receptors of the eye.

What Structure Regulates the Amount of Light Passing to the Visual