#3 Refers to the circular structure that surrounds the pupil and regulates the amount of light entering the eye.

• Cornea

• Pupil

• Retina

• Iris

#7 Refers to the part of the eye that carried visual information from the eyeball to the brain

• lens

• optic nerve

• retina

• sclera

# 5 refers to the layer of receptor cells at the back of the eye in which the image is focused

• Retina

• Lens

• Optic Nerve

• Lens

The white part of the eye made of a tough material

• lens

• sclera

• retina

• optic nerve

The colorful part of the eye, controls light going into the pupil

• lens

• iris

• sclera

• retina

back of the eye, takes light and changes it to nerve signals

• lens

• sclera

• optic nerve

• retina

carries messages from the eye to the brain

• lens

• vitreous humor

• retina

• optic nerve

gel substance that gives the eye shape

• optic nerve

• iris

• vitreous humor

• retina

Photoreceptors that detect Color

• Cones
• Rods

Photoreceptors that detect gray tones in low light

• Rods
• Cones