Sensation: Parts of the EYE

When light waves enter the eye, they first pass through the ________.

• iris

• lens

• pupil

• cornea

What is the pupil of the eye?

• it is the white part of the eye

• it is the colored part of the eye

• it is the location of the visual receptors

• it is the small opening in the center of the eye

The clear, transparent protective coating over the front part of the eye is the

• fovea

• sclera

• cornea

• iris

The colored part of the eye that contains muscles to contract or expand the pupil is the _______.

• iris

• fovea

• lens

• pupil

The amount of light entering the eye is controlled by the

• cornea

• lens

• pupil

• retina

Light is focused on the retina by the

• pupil

• ganglion cells

• iris

• lens

Which component of the eye contains the visual receptors?

• sclera

• retina

• cornea

• optic nerve

Bundles of axons from ganglion cells make up the ____.

• optic nerve

• fovea

• optic schism

• retina

The place in the retina where the axon of all ganglion cells come together to leave the eye is called the

• fovea

• blind spot

• optic nerve

• retina

Which of the following is true about cones?

• they are responsible for black and white vision

• they are responsible for color vision

• they operate mainly at night

• they are responsible for depth perception