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40 Cards in this Set
- Front
- Back
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What are the special senses ? |
smell, taste, sight, hearing and equilibrium |
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what are some accessory structures to the eye? |
eyelids and eyelashes, conjuntiva, lacrimal apparatus, and extrinsic eye muscle |
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what are the eyelids and eyelashes ? |
tarsal glands that lubricate the eye |
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what is the conjunctiva ? |
the membrane that lines the eyelids and secretes mucous to lubricate the eye |
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what is the lacrimal apparatus ? |
produces lacrimal fluid, tears. |
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what are the functions of the lacrimal apparatus ? |
protects, moistens, and lubricates the eye |
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what is the property of lacrimal fluid ? |
dilute salt solution |
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what is the extrinsic eye muscles ? |
six muscles attach to the outer surface of the eye |
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what do the extrinsic eye muscles do? |
produces eye movement |
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what are the layers of the wall of the eyeball ? |
fibrous layer, vascular layer, and the sensory layer |
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what is the sclera ? |
white connective tissue layer |
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what is the cornea ? |
transparent , central anterior portion, allows light to pass through |
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what is the vascular layer ? |
choroid is a blood rich nutritive layer in the posterior of the eye |
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what is the property of lacrimal fluid ? |
dilute salt solution |
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what is the extrinsic eye muscles ? |
six muscles attach to the outer surface of the eye |
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what do the extrinsic eye muscles do? |
produces eye movement |
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what are the layers of the wall of the eyeball ? |
fibrous layer, vascular layer, and the sensory layer |
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what is the sclera ? |
white connective tissue layer |
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what is the cornea ? |
transparent , central anterior portion, allows light to pass through |
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what is the vascular layer ? |
choroid is a blood rich nutritive layer in the posterior of the eye |
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what does the vascular layer prevent ? |
scattering light |
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what is the property of lacrimal fluid ? |
dilute salt solution |
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what is the retina? |
contains rods and cones |
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what is a rod ? |
allows you to see black and white |
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what are cones ? |
allows you to see color |
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what are the lens? |
biconvex crystal like structure |
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what is the anterior segment? |
contains aqueous humor |
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what is the posterior segment? |
contains the vitreous humor |
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what is the aqueous humor ? |
watery fluid found between lens and cornea |
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what is the ventreous humor ? |
gel like substance posterior to the lens |
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what’s an ophthalmoscope? |
instrument used to illuminate the interior or the eyeball |
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what is the extrinsic eye muscles ? |
six muscles attach to the outer surface of the eye |
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what do the extrinsic eye muscles do? |
produces eye movement |
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what are the layers of the wall of the eyeball ? |
fibrous layer, vascular layer, and the sensory layer |
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what is the sclera ? |
white connective tissue layer |
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what is the cornea ? |
transparent , central anterior portion, allows light to pass through |
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what is the vascular layer ? |
choroid is a blood rich nutritive layer in the posterior of the eye |
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what does the vascular layer prevent ? |
scattering light |
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what is the cilliary body? |
smooth muscle attached to the lens |
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what is the Iris ? |
regulates the amount of light entering the eye |
