Sense Organs

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

• Cornea

• Pupil

• Retina

• Iris

#1 Refers to the clear tissue that covers the front of the eye

• Retina

• Cornea

• Pupil

• Iris

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

What part of the eye holds the lens in place?

• cornea
• ciliary muscles
• pupil
• retina

what is the iris

• the colored part of the eye that controls the size of the pupil
• Transparent jellylike fluid that fills the eye and refracts light.
• Sends messages picked up by the retina to the brain 
• Hole passes different amounts of light

This part of the eye has photoreceptors called rods and cones.  They help us to see color and see at night.  It is called:

• optic nerve
• brain
• retina
• cornea