Quiz 6_Light

Which transparent structure helps focus light and can regenerate quickly when damaged?

• Lens

• Cornea

• Conjunctiva

• Retina

The white part of the eye that provides shape and allows muscle attachment is the:

• Iris

• Retina

• Sclera

• Choroid

Which layer keeps the eye moist and becomes infected in 'pink eye'?

• Conjunctiva

• Cornea

• Retina

• Ciliary body

Tears are produced by the:

• Aqueous humor

• Vitreous humor

• Lacrimal glands

• Choroid

What is the black hole in the center of the eye where light enters?

• Iris

• Pupil

• Retina

• Lens

The colored part of the eye that controls the size of the pupil is the:

• Cornea

• Lens

• Iris

• Retina

Which structure changes shape to focus light onto the retina?

• Lens

• Cornea

• Pupil

• Sclera

The light-sensitive layer at the back of the eye that contains rods and cones is the:

• Retina

• Iris

• Cornea

• Sclera

Which part of the eye provides blood and nutrients between the sclera and retina?

• Vitreous humor

• Ciliary body

• Choroid

• Conjunctiva

Which structure holds and adjusts the lens using ciliary muscles?

• Retina

• Ciliary body

• Cornea

• Iris