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9 Cards in this Set
- Front
- Back
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cornea
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transparent front surface through which light enters. Helps protect and eye and focuses light rays |
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Pupil
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black part of the eye. opening through which light enters the inside of the eye. can expand to let more light in or contract to let less light in |
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Iris
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colored part of the eye. Ring of muscle that changes the size of the pupil |
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Lens
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light passes through after entering the pupil. CONVEX lens!! |
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Ciliary Muscle
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holds the lens in place. adjusts the lens so you can see far away and close up objects |
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Retina
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layers of cells on which an upside-down image forms |
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Rods
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allows you to see in dim light |
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Cones
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detects red, green, and blue light |
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Optic Nerve |
carries a signal from the rods and cones to the brain |
