Term
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Definition
| -thin mucous membrane on back of eyelid and anterior surface of eyeball |
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Definition
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Term
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Definition
-secretes tears (upper lateral to inferior medial)
-upper lateral corner of orbit
-controlled by facial nerves |
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Term
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Definition
-collects tears
-passes from medial corner of orbit and lateral nose to the nasal cavity
-runny nose |
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Term
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Definition
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Term
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Definition
-white of eye
-contains blood vessels
-gives shape
-extrinsic muscles attach here
-protects inner structures |
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Term
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Definition
-front of eye
-transparent, multilatered |
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Term
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Definition
| choroid, ciliary body, iris |
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Term
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Definition
| contains blood vessels supplying the interior of eye |
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Term
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Definition
| -smooth muscle which changes shape of lens |
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Term
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Definition
| muscle that changes size of pupil to protect retina from strong light |
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Definition
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Definition
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Term
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Definition
-9 layers
-3 needed for conduction of visual image
-layer of rods/cones, bipolar cells, ganglionic cells - optic nerve |
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Term
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Definition
-divet in retina
-area of sharpest vision |
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Term
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Definition
-where optic nerve enters with blood vessels
-no cells of retina here
-blind spot |
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Term
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Definition
-anterior/posterior to iris-aqueous humor
-posterior most-vitreous |
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Term
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Definition
-crystal clear
-contains elastic CT
-changes shape to focus image
-contains some protein
-if protein increases - cataracts |
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Term
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Definition
| -light is converted to an electrical impulse in retina then transmitted to occipital lobe of brain |
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Term
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Definition
| -eyeballs rotate medially to allow better focusing of light when viewing an object close up |
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Term
| cranial nerves involved in eye movement |
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Definition
| -oculomotor, trochlear, abducens |
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