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11 Cards in this Set
- Front
- Back
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cornea |
a tough, clear covering that protects the iris and the pupil |
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iris |
a muscle that controls how much light enters the eye |
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pupil |
a dark circle in the center of the iris that allows light to enter the inner eye |
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lens |
a clear, flexible structure that focuses light and creates an image on the retina |
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retina |
a layer of light-sensitive cells (cones and rods) at the back of the eye that detects images focused by the cornea and lens |
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blind spot |
the place where the optic nerve leaves the retina and where there are no light-sensitive cells |
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optic nerve |
the bundle of nerve fibers that carry signals, impulses, information, etc. from the retina to the brain |
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tapetum |
a colorful, shiny material (found in animals with good night vision) which reflects light back through the retina |
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aqueous humor |
a clear fluid that gives the cornea a rounded shape |
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vitreous humor |
a thick, clear jelly that gives the eyeball its shape |
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sclera |
the tough, white outer covering of the eye |
