Outer Eye Parts
Eye Parts - 1
Eye Parts - 2
Facts
Cow Eyes
100
What keeps sweat and debris from falling into the eye?
eyebrow
100
What regulates the amount of light entering the eye and gives the eye its color?
iris
100
What is the round opening in the iris?
pupil
100
What must be present to be able to see objects?
light
100
What color is the cow's iris?
brown
200
What helps keep dust out of the eye?
eyelashes
200
What is the part that focuses light rays?
lens
200
What lines the inside of the eyeball and contains an upside down image?
retina
200
What part decodes nerve cell messages?
the brain
200
What is the shape of the cow's pupil?
oval
300
What protects the front of the eye and spreads moist tears?
eyelids
300
What is the clear tissue that covers the front of your eye?
cornea
300
What nerve sends the images to the brain?
optic nerve
300

How many muscles hold the eyeball in place?

A. one hundred 

B. four

C. six

300
How many muscles hold a cow's eye in place?
four
400
Where are your tears created and stored?
tear gland
400
What is the white part of the eye?
sclera
400
What cells allow us to see color and shades of gray?
rods and cones
400

What cushions the eye from the eye socket?

A. liquid 

B. fat

C. muscle 

400
What attaches the vitreous humor to the lens?
ciliary muscles
500
What carries tears away from the eye into a passageway to the nose?
tear ducts
500

What is the jellylike substance that fills your eye?

A. vitreous humor

B. Corena 

C. Optic Nerve

500
What is the watery fluid in front of the lens?
aqueous humor
500

What muscles open and close the pupil?

A. sphincter and dilator

B. Optic Nerve 

C. Cornea 

500
What is the shiny blue-green layer over the cow's retina?
tapetum
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