Facial Pertains to the Face

question 13

True/False

Facial pertains to the face.

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Definitions:

Iris

The iris is the colored part of the eye that controls the size of the pupil and the amount of light reaching the retina.

Lens

A transparent structure in the eye that focuses light rays onto the retina to create clear images.

Retina

A layer of tissue at the back of the eye that senses light and sends visual signals to the brain.

Rhodopsin

Light-sensitive substance found in the rods of the retina; composed of opsin loosely bound to retinal.