Eye Vocabulary
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Cornea | Transparent covering that allows light to enter the eye; on a preserved specimen, the cornea is cloudy.
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| Optic Nerve | Bundle of nerve cells that send signals from the eye to the brain.
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| Aqueous Humor | Clear fluid filling the area between the lens and the cornea, composed mostly of water.
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| Vitreous Humor | Viscous fluid that fills the vitreous body; helps maintain the shape of the eyeball.
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| Retina | Light-sensitive portion of the eye composed of receptor cells called cones and rods.
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| Tapetum Lucidum | Iridescent portion of the choroid tissue; helps in night vision by reflecting available light back onto the retina.
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| Lens | Biconvex transparent structure that focuses the light coming in through the cornea and pupil.
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| Iris | Diaphragm that regulates the size of the pupil.
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| Pupil | Opening through which light enters the eye.
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| Sclera | Outer covering of the eyeball; a tough, opaque sheet of connective tissue that protects inner structures of the eyeball and helps maintain rigidity.
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| Choroid | Thin, dark sheet of tissue between the retina and the sclera.
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