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specialsense test1

special senses test review wk 1

conjunctiva membrane lining the inner surfaces of the eyelids; clear
cornea fibrous, transparent tissue that extends over the pupil and iris
what is the function of the cornea bend/refract rays of light
choroid supply nutrients to the eye; vital part of the eye
what is known as the uvea of the eye choroid, iris, ciliary body
zonules fine thread like attachments connect the ciliary body and lens; allows eyes to adjust shape and thickness of lens
accomidation focus
aqueous humor fluid the ciliary body secretes
what is the function of the aqueous humor maintains the shape of the anterior eye
vitreous humor maintains the shape of the eye, is not constantly reformed
retina thin, delicate, sensitive nerve layer of eye; functional part of the eye
rods photoreceptors that see black and white
cones photoreceptors that see color and bright lights
how many rods are there 120 million
how many cones are there 6.5 million
nerve impulses travel from eye to brain using what optic nerve
optic disc where the optic nerve meets the retina
macula small, oval, yellowish area adjacent to the optic disc
fovea centralis central depression; sharpest vision of the eye
hemi half
an without
opsia vision
blephar/o eyelid
conjunctiv/o conjunctiva
corne/o cornea
cycl/o ciliary body
kerat/o cornea
palpebr/o eyelid
uve/o uvea; vascular layer of the eye
presby/o old age
xer/o dry
astigmatism defective curvature of the cornea or lens
hyperopia farsightedness
myopia nearsightedness
presbyopia impairment of vision as result of old age
glaucoma increased intraocular pressure results in damage to the retina and optic nerve with loss of vision
pinna/auricle projecting part/flap
tympanic membrane eardrum
3 smallest bones in body; ossicle chain malleus, incus, stapes
eustachian tube used to equal the pressure in the middle ear to the environment
cochlea snail-shaped structure; how you hear; interperates sound waves
myco fungus
osis condition of
vestibular balance
rrhea flow
dacry/o tear
aniscoria unequal
meniere disease disorder of the labyrinth of the inner ear
otitis media inflammation of the middle ear (ear infection)
tinnitus sensation of noises in the ear
vertigo sensation of irregular or whirling motion either of oneself or of external objects
tonometry used to measure if a person has glaucoma
macular degeneration loss of vision; progressive damage to the macula
ot/o ear
opthal eye
ology study of
meatus opening
cerumen ear wax
sclerosis hardening
2 types of deafness conductive/ neurosensory
Created by: a1h12