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circular pigemented ring of muscles issue behind the cornea
iris
white outer part of the eyball
sclera
innermost layer of the eyball
contains rods and cones
continues posterity w/ the optic nerve
retina
middle layer of the eyeball that contains a dark pigment to prevent the scattering of incoming light rays
choroids
muccous membrane that lines the eyelids and covers the sclera
conjunctiva
the gland that produce tears
located in the upper lateral portion of the eye orbit
lacrimal gland
the opening in the center of the iris that regulates the amount of light entering the eye
pupil
the refracting mechanism of the eye that is located directly behind the pupil
lens
farsightedness of old age
presbyopia
opacity of the lens of the eye
cataract
receptors located in the retina that are responsible for night vision
rods
receptor cell located in the retina that is stimulated by bright light
cones
yellowish area near center of retina filled w/ cones permitting acute image formation of color vision
macula lutea
watery fluid that fills the anterior chamber of the eye
in front of the lens
aqueous humor
thick fluid membrane in the posterior chamber of the eye
virteous humor
disorder characterized by elevated pressure in the eye
glaucoma
refractive disorder of the eye caused by an elongated eyeball
nearsightedness
myopia
refractive disorder of the eue caused by a shorter than normal eyeball
farsightedness
hyperopia
irregular curvature of the cones or lens that impairs refraction of a well focused image in the eye
astigmatism
inflammation of the conjuctiva
usually caused by irritation infection or allergy
conjunctivitis
chronic infection of the conjunction covering the eye caused by the baterium chlamydia trachomatis
also called chlamydial conjunctivitis
trachoma
abnormal condition in which lack coordination or weakness in muscles that control the eye
cause improper focusing of images on the retina, thus making depth perception difficult
strabismus
growth or hemorrhage of blood vessels caused by diabetes mellitus
diabetic retinopathy
condition caused by retinal degeneration or avitaminosis A and characterized by true relativiability to see in dim light
night blindness
nyctalopia
X-linked inherited condition one or more photoreceptors in the cones of the retina are abnormally missing
color blindness
Loss of the central visual field caused by nerve degeneration
it sometimes occurs within neuritis associated w/ multiple sclerosis
scotoma
double vision
diplopia
Normal vision
emmetropia
hordeolum a bacteria infection of the sebaceous cist of the eyelid
sty
occulus dexter
OD
occulus sinister
OS
occulus uterique
OU
appendage of the external ear
auricle or pinna
a curved tube extending from the auricle into the temporal bone, ending at the tympanic membrane
external auditory canal
ear drum
tympanic membrane
ear wax
cerumen
ear bones
ossicles
ear bone attached to tympanic membrane
malleus
located in the middle ear
incus
located in the oval window
stapes
structure that connects middle ear to pharanyx
eaustachian tube
also known as organ of hearing
otosclerosis
ringing sound in ear
tinnitus
generic term that means inflammation of the ear
otitis
hearing loss associated w/ aging
presbycusis
a chronic inner ear disorder tinnitis & vertigo
possible hearing loss
Meniere's disease
abnormal sensation of spinning
dizziness
vertigo
auricle dexter
AD
auricle sinister
AS
auricle uterique
AU
chemical receptor that generates nerve impulse resulting in the sens of taste
taste buds
small nipple shaped elevations
papillae
cells of taste
gustatory
sense of smell
olfactory
bloody nose
epistaxis
Author
tiannaraysor
ID
11139
Card Set
Gnann
Description
Ch. 10 Vocab
Updated
2010-03-18T20:36:24Z
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