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Process of hearing
sound vibrations are transformed into a nervous impulse & transmitted to the brain by the auditory nerve.
Deafness can be due to...
sound wave conduction problems, inflammation, injury, obstruction or nerve problem.
Equilibrium controlled in...
three semicircular canals oriented in three planes (transverse, horizontal, vertical), that contain fluid with small crystals.
White posterior part of eye; dense and opaque. Has blood vessels and nerves. Muscle attach to it.
Pigmented portion of eye. Ring of muscle that opens or closes to control amount of light let in.
"Pupillary opening." Opening of the iris. Round in most species, elliptical in cats and snakes.
Glaucoma, and use what to measure
Aqueous humor made quicker than it can exit eye. Increased pressure. Use tonometer to measure pressure.
Used to see, 10 nervous tissue layers thick, picks up light and transmits it to brain down optic nerve, contains pigment.
Palpebra and function
Eyelids. Keep eye from drying out, make lubrication in glands in corner of eye.
Cherry eye and common in...
Tear in gland attached to third eyelid, sticks out. Common in cocker spaniels.
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