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25 Cards in this Set
- Front
- Back
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Theses are concentrated in the face, fingertips, and lips and tongue.
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Touch receptors messner's corpuscles
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these are deep in the dermis of the skin
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pressure receptors; pacinian corpuscles
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Where do sound waves enter in the ear?
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pinna
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another name for eardrum is
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tympanic membrane
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what are the 3 layers of the eye?
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sclera, choroid, retina
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this part of the eye is white;protection
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sclera
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this layer of the eye is blood vessels
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choroid
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this layer of the eye is la layer of rods and cones
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retina
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part of the Organ of Corti.
rubbing of hair cells against this......stimulates neveve endings to form nerve impulses. |
Tectorial Membrane
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Impulses are sent along this nerve to the temporal area of the cerebrum for interpretation
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Auditory nerve
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these decect head tilting and acceleration
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contained in the vestibule they are called otoliths
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in the eye light enters this...
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pupil
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cells of the___ regulate amont of light entering
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iris
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oval disc which focuses light on retina
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lens
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connect to the lens to regulate focusting by changing its shape
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ciliary
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fuction in dim light.
involved in black and white vision. contain rhodopsin |
Rods
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involved in color vision. contain cone opsin
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cones
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bacterica from pharynx migrate up eustachian tube to the middle ear. fluidd and pus accumulate in the biddle ear causeing the eardrum to bulge outward
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middle ear infection or also callded otitis media
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damage to eardrum or midddle ear bones. hearing aides amplify sound
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conduction deafness
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damage to haircells of the organ of corti. no impulses reach brain. caused by long exposure to load sounds. Treated by a cochlear implant
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nerve deafness
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clouding of lens resulting in less light hitting the retina.
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cataracts
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incressed pressure in eyeball due to excessive fluid pressure of aqueous humor and vitreous humor.
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glaucoma
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eyeball is elongated imfages from far away do not focus on retina
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nearsightedness
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eyeball is short close images do not focus on retina
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farsightedness
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lens loses flexibility and shape of lens cant be admusted from close up vision.
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presbyopia
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