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16 Cards in this Set
- Front
- Back
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The accessory structures are for |
Protection Lubrication Support |
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What keeps the surfaces lubricated, free of dust, and debris |
Blinking |
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What prevemts foreign matter from reaching surface |
Eyelash |
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Lacrimle caruncle |
Secretes antibacterial propertiss to protect eye |
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Sclera |
Fibrous tunic Supports, protects, muscle attachment |
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Cornea |
Allows light into eyeball Avascular with many nerve endings |
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Choroid Layer |
Vascular tunic Responsible for aquaes humor circulation, lens shape |
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Pigment and smooth muscle is the |
Iris |
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Retina |
Neural tunic Contains visual receptors and neurons |
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Photoreceptors |
Rods and cones Cones are clustered at the fovea |
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Ciliary body and lens divide the eye into |
Large posterior cavity |
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The lens is held in place by |
Suspensory ligaments |
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Functions of the lens |
Refract light to fovea |
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Loss of transparency in lens is called |
Cataracts |
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Myopia is |
Nearsightedness Eyeball is too deep See distant objects blurry |
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Hyperopia |
Eyeball is shallow or the lens is too flat |
