eye functions

Which part of the eye absorbs light from the sides of the eye?

• lens
• ciliary body
• choroid
• pupil

What part of the eye has the highest concentration of rods and cones?

• optic nerve
• fovea centralis
• optic disk
• iris

What part of the eye is the colored, muscular portion of the eye which controls pupil size?

• iris
• lens
• choroid
• ciliary body

Which part of the eye is the outer white part of the eye?

• cornea
• iris
• ciliary body
• sclera

What part of the eye focuses light on the retina?

• lens
• retina
• pupil
• ciliary body

Type of photoreceptor that is active in bright light and perceives color?

• fovea centralis
• cones
• rods
• optic disk

What part of the eye has NO photoreceptors

• fovea centralis
• optic disk
• retina

What part of the eye is a clear protective structure that allows light to enter the eye?

• iris
• retina
• cornea
• choroid

What part of the eye sends nerve impulses to the brain

• optic nerve
• iris
• cornea
• sclera

What part of the eye sits on the outer surface of the cornea and lines the eyelids. This structure produces mucous

• iris
• lens
• retina
• conjunctiva