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Can be caused by damage to the receptors in the cochlea or brain damage in the auditory regions.
Disorder that affects the semicircular canals & cochlea that lads to attacks of vertigo & nausea often accompanied by tinnitus.
Sequence of correct passage of light entering the cornea
Cornea, anterior segment, pupil, lens, posterior segment.
Tiny skeletal muscles associated with the ossicles of the middle ear function to
Protect the hearing receptors from loud sounds.
Where are receptors for sound reception & equilibrium located?
Inner ear cavity within the bony labyrinth.
Disease of the rods that occur when the pigment epithelial cells are unable to recycle the tips of the rods as they are sloughed off.
Bleaching of pigment
Refers to the process of breaking down the retinal-opsin combinations that form rhodopsin found in rods & cones.
Eyeballs rotate downward
The muscle is inserted to the inferior surface of the eyeball and it rotated the eye up & laterally.
Correct order of light transmission from air to the retina.
Air, cornea, aquenous humor, lens, vitreous humor, retina.
Events that occur during sound transmission.
Tympanic membranes vibrates; internal ear fluids are set in motion; hearing receptors are stimulated; ossicles of the ear vibrate; auditory cortes is stimulated.
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