Solve Using Any Method

question 79

Multiple Choice

Solve using any method.

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Definitions:

Pupil Diameter

The size of the opening in the center of the iris of the eye, which regulates the amount of light that enters the eye.

Sphincter Pupillae

Circular smooth muscle fibers of the iris’s diaphragm that constrict the pupil of the eye.

Ciliary Muscles

Ring-shaped muscles in the eye that change the shape of the lens to focus light on the retina, enabling the eye to adapt its vision for close or distant objects.

Dilator Pupillae

Radial smooth muscle cells of the iris diaphragm that cause the pupil of the eye to dilate.