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25 Cards in this Set
- Front
- Back
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What are the general senses of touch? |
Temperature Pressure Pain |
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What are the 5 special senses? |
Smell Taste Sight Hearing Equilibrium |
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What percent of all sensory receptors are in the eye? |
70%of the sensory receptors |
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What lubricates the eye |
The tarsal glands |
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What glands are located between the eyelashes |
The ciliary glands |
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What are the accessory structures of the eye? |
Eyelids&eyelashes Conjunctiva Lacrimal apparatus Extrinsic eye muscle |
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Where does the conjunctiva connect? |
Connects to the surface of the eye |
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What is the conjunctiva? |
A membrane that lines the eyelids |
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What do lacrimal glands do? |
Produce lacrimal fluid |
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What do lacrimal canals do? |
Drain lacrimal fluid from the eyes |
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What does the nasolacrimal duct do? |
Empties lacrimal fluid into the nasal cavity |
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What is the function of the lacrimal apparatus? |
Protects, moistens, and lubricates the eye |
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What are tears made of? |
Salt and water |
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What are the layers that form the wall of the eyeball? |
Fibrous layer- outside layer Vascular- middle layer Sensory layer- inside layer |
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What is considered the “ white of your eye” |
The sclera |
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What allows for light to pass through? |
The cornea |
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What is so special about the cornea? |
It is the only human tissue that can be transplanted without fear of rejection |
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What does the iris do? |
Regulates amount of light that enters the eye |
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What is the pupil? |
The rounded opening of the eye |
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What two layers does the retina contain? |
Outer pigmented layer Inner neural layer |
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What is the difference between rode and cones? |
Rods are for night vision Cones are the during the day vision |
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What is the vitreous humor? |
The gel-like substance posterior to the lens Prevents the eye from collapsing |
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What are the two chambers of the eye? |
The anterior (aqueous) segment The posterior aqueous (vitreous) segment |
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What are the external and middle ear only involved in? |
They are only involved in hearing |
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What is otosclenosis? |
Ear ossicles fuse |
