Parts of the eye

Front

What part of the eye regulates the amount of light entering the eye and gives the eye its color?

Back

Iris

Front

What is the layer of receptor cells that lines the back of the eye where nerve impulses begin?

Back

Retina

Front

What is the transparent structure in the eye that helps to focus light?

Back

Lens

Front

What is the opening in the center of the iris that allows light to enter the eye?

Back

Pupil

Front

What is the tough outer layer of the eye that provides protection?

Back

Sclera

Front

What is the clear front part of the eye that covers the iris and pupil?

Back

Cornea

Front

What is the gel-like substance that fills the space between the lens and the retina?

Back

Vitreous humor

Front

What is the nerve that transmits visual information from the retina to the brain?

Back

Optic nerve

Front

What part of the eye contains the photoreceptor cells (rods and cones)?

Back

Retina

Front

What is the colored part of the eye that controls the size of the pupil?

Back

Iris