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Medical Terminology
Special Senses Chapter
102
Medical
Graduate
12/06/2010

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Term
AD
Definition
right ear
Term
AS
Definition
left ear
Term
ASL
Definition
American Sign Language
Term
AU
Definition
both ears
Term
dB
Definition
decibel
Term
ECCE
Definition
extracapsular cataract extraction
Term
EOM
Definition
extraocular movement
Term
ERG
Definition
electroretinography
Term
IOP
Definition
intraocular pressure
Term
OD
Definition
right eye
Term
OM
Definition
otitis media
Term
OS
Definition
left eye
Term
OU
Definition
both eyes
Term
PVD
Definition
posterior vitreous detachment
Term
accommodation
Definition
the process that allows the shape of the lens to change for near and far vision
Term
aqueous humor
Definition
thick watery substance filling the space between the lens and the cornea
Term
canthus
Definition
angle where the supper and lower eyelids meet
Term
choroid
Definition
opaque middle layer of the eyeball
Term
ciliary body
Definition
set of muscles and suspensory ligaments that adjust the lens
Term
cones
Definition
color receptors on the retina that have high visual acuity
Term
conjunctiva
Definition
the mucous membrane covering the anterior of the eyeball and inner eyelid
Term
cornea
Definition
transparent shield of tissue forming the outer wall of the eyeball
Term
dacryocyst
Definition
tear sac; lacrimal sac
Term
extraocular
Definition
situated outside the eye
Term
fovea centralis
Definition
a pit in the middle of the retina that is the area of sharpest vision
Term
iris
Definition
the anterior part of the vascular tunic; it is the colored part of the eye
Term
lacrimal apparatus
Definition
collectively: the lacrimal gland, lake, canaliculi (small canals), an sac, along with the nasolacrimal duct
Term
lens
Definition
the refractive structure of the eye, lying between the iris and the vitreous body
Term
ocular
Definition
adjective referring to the eye
Term
optic nerve
Definition
the cranial nerve responsible for vision
Term
orbit
Definition
bony depression in the skull that houses the eyeball
Term
palpebra
Definition
eyelid
Term
photoreceptors
Definition
retinal cones and rods
Term
pupil
Definition
the dark part in the center of the iris through which light enters the eye
Term
retina
Definition
light-sensitive membrane forming the innermost layer of the eyeball
Term
rods
Definition
black and white receptors on the retina that respond to dim light
Term
sclera
Definition
the outer surface of the eye; part of the fibrous tunic
Term
uvea
Definition
vascular layer of the eye
Term
vitreous body
Definition
a transparent jelly-like substance filling the interior of the eyeball
Term
vitreous humor
Definition
the fluid component of the vitreous body
Term
amblyopia
Definition
condition that occurs when visual acuity is not the same in both eyes; also called "lazy eye"
Term
astigmatism
Definition
fuzzy vision caused by the irregular shape of one or both eyeballs
Term
blepharitis
Definition
inflammation of the eyelid
Term
blepharoconjunctivitis
Definition
inflammation of the palpebral conjunctiva, the inner lining of the eyelids
Term
blepharoplegia
Definition
paralysis of an eyelid
Term
blepharoptosis
Definition
drooping eyelid
Term
blepharospasm
Definition
involuntary contraction of the eyelid
Term
cataract
Definition
complete or partial opacity of the ocular lens
Term
conjunctivitis
Definition
inflammation of the conjunctiva; pinkeye
Term
dacryocele
Definition
herniated lacrimal sac (filled with fluid)
Term
dacryocystitis
Definition
inflammation of the tear sac
Term
dacryolith
Definition
a "stone" in the lacrimal apparatus
Term
dacryorrhea
Definition
excessive discharge of tears
Term
glaucoma
Definition
disease fo the eye characterized by increased intraocular pressure and atrophy of the optic nerve
Term
hordeolum
Definition
a sty on the eyelid; a sty is an infection of a gland in the eye
Term
hyperopia
Definition
farsightedness
Term
iridomalacia
Definition
softening of the iris
Term
iritis
Definition
inflammation of the iris
Term
keratitis
Definition
inflammation of the cornea
Term
lacrimal
Definition
referring to or related to tears or the tear ducts and glands
Term
lacrimation
Definition
excessive tearing
Term
myopia
Definition
nearsightedness
Term
oculodynia
Definition
pain in the eyeball
Term
oculopathy
Definition
generic term for eye disease
Term
ophthalmolith
Definition
a stone in the lacrimal apparatus
Term
ophthalmomalcia
Definition
softening of the eyeball
Term
ophthalmopathy
Definition
generic term for eye disease
Term
presbyopia
Definition
farsightedness resulting from loss of elasticity of the lens due to aging
Term
strabismus
Definition
lack of parallelism in the visual axes; crossed eyes
Term
xerophthalmia
Definition
dry eyes
Term
auricle
Definition
one of the two parts of the external ear (the outer part is the auditory canal)
Term
cerumen
Definition
wax-like secretion occurring in the external auditory canal
Term
cochlea
Definition
part of the bony labyrinth
Term
eustachian tube
Definition
the auditory tube that connects the middle ear to the pharynx
Term
external auditory canal
Definition
one of the two parts of the external ear (the other part of the auricle)
Term
incus
Definition
one of the auditory ossicles (the anvil)
Term
labyrinth
Definition
canals of the inner ear
Term
malleus
Definition
one of the auditory ossicles (the hammer)
Term
ossicles
Definition
three small bones in the middle ear; the malleus (hammer), the incus (anvil), and the stapes (stirrup)
Term
pinna
Definition
another term for auricle
Term
stapes
Definition
one of the auditory ossicles (the stirrup)
Term
tympanic cavity
Definition
the middle ear
Term
tympanic membrane
Definition
the eardrum
Term
anacusis
Definition
total deafness
Term
conductive hearing loss
Definition
hearing loss caused by interference with sound tranmission in the external auditory canal, middle ear, or ossicles
Term
labyrinthitis
Definition
inflammation of the labyrinth
Term
mastoiditis
Definition
inflammation of any part of the mastoid process
Term
Meniere syndrome
Definition
chronic disease of the inner ear characterized by vertigo, tinnitus, and periodic hearing loss
Term
myringitis
Definition
inflammation of the tympanic membrane
Term
otalgia
Definition
pain in the ear
Term
otitis
Definition
inflammation of the ear
Term
otodynia
Definition
earache
Term
otopathy
Definition
any disease of the ear
Term
otoplasty
Definition
surgical repair of the pinna of the ear
Term
otorrhea
Definition
fluid discharge from the ear
Term
otosclerosis
Definition
formation fo spongy bone in the inner ear producing hearing loss
Term
presbycusis
Definition
hearing loss that occurs with aging
Term
sensorineural hearing loss
Definition
hearing loss caused by a neural condition
Term
tinnitus
Definition
sensation of noises (such as ringing) in the ears
Term
vertigo
Definition
sensation of spinning or whirling; can be caused by infection or other disorder in the inner ear
Term
Rinne test
Definition
hearing test using a tuning fork; checks for differences in bone conduction and air conduction
Term
Weber test
Definition
hearing test using a tuning fork; distinguishes between conductive and sensorineural hearing loss
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