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The Ear
all the terms
77
Health Care
Undergraduate 1
06/24/2015

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Term
acous/o
Definition
hearing
Term
audi/o
Definition
hearing
Term
aur/i
Definition
ear
Term
ot/o
Definition
ear
Term
tympan/o
Definition
eardrum
Term
myring/o
Definition
eardrum
Term
aer/o
Definition
air or gas
Term
cerumin/o
Definition
wax
Term
salping/o
Definition
eustachian tube or uterine tube
Term
-acusis (additional suffix)
Definition
hearing condition
Term
pinna
Definition
auricle (little ear); projected part of the external ear (pinna = feather)
Term
external auditory canal
Definition
external passage for sounds collected from the pinna to the tympanum
Term
cerumen
Definition
a waxy substance secreted by glands located throughout the external canal
Term
tympanic membrane (TM)
Definition
eardrum; drumlike structure that receives sound collected in the external auditory canal and amplified it through the middle ear
Term
malleus
Definition
hammer; first of the three auditory ossicles of the middle ear
Term
incus
Definition
anvil; middle of the three auditory ossicles of the middle ear
Term
stapes
Definition
stirrup; last of the three ossicles of the middle ear
Term
auditory tube
Definition
tube connecting the middle ear to the pharynx (throat)
Term
eustachian tube
Definition
tube connecting the middle ear to the pharynx (throat)
Term
oval window
Definition
membrane that covers the opening between the middle ear and inner ear
Term
labyrinth
Definition
maze; inner ear consisting of bony and membranous passages, inner ear
Term
cochlea
Definition
coiled tubular structure of the inner ear that contains the organ of Corti (cochlea = snail), inner ear
Term
perilymph
Definition
fluid that fills the bony labyrinth of the inner ear
Term
endolymph
Definition
fluid within the cochlear duct of the inner ear
Term
organ of Corti
Definition
organ located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing, inner ear
Term
Inner Ear
Definition
structures and liquids that relay sound waves to the auditory nerve fibers on a path to the brain for interpretation of sound
Term
vestibule
Definition
middle part of the inner ear in front of the semicircular canals and behind the cochlea that contains the utricle and the saccule
Term
utricle
Definition
larger of two sacs within the membranous labyrinth of the vestibule in the inner ear (uter = leather bag)
Term
saccule
Definition
smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear (sacculus = small bag)
Term
semicircular canals
Definition
three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement
Term
Otalgia
Definition
earache
Term
anacusis
Definition
total hearing loss
Term
otodynia
Definition
earache
Term
otorrhagia
Definition
bleeding from the ear
Term
otorrhea
Definition
purulent drainage from the ear
Term
paracusis
Definition
impaired hearing
Term
tinnitus
Definition
a jingling; ringing or buzzing in the ear
Term
vertigo
Definition
a turning round; dizziness
Term
Myringitis
Definition
inflammation of the eardrum
Term
otitis externa
Definition
inflammation of the external auditory canal
Term
cerumen impaction
Definition
excessive buildup of wax in ear, often reducing hearing acuity, especially in elderly persons
Term
tympanitis
Definition
inflammation of the eardrum
Term
otitis media
Definition
inflammation of the middle ear
Term
aerotitis media
Definition
inflammation of the middle ear from changes in atmospheric pressure; often occurs in frequent air travel
Term
eustachian obstruction
Definition
blockage of the eustachian tube usually as a result of infection, as in otitis media
Term
Presbyacusis
Definition
hearing impairment in old age
Term
labyrinthitis
Definition
inflammation of the labyrinth (inner ear)
Term
otosclerosis
Definition
hardening of the bony tissue in the ear
Term
deafness
Definition
general term for partial or complete hearing loss
Term
conductive hearing loss
Definition
hearing impairment caused by interference with sound or vibratory energy in the external canal, middle ear, or ossicles
Term
sensorineural hearing loss
Definition
hearing impairment caused by lesions or dysfunction of the cochlea or auditory nerve
Term
presbycusis
Definition
hearing impairment in old age
Term
audiometry
Definition
process of measuring hearing
Term
audiometer
Definition
instrument to measure hearing
Term
audiogram
Definition
record of hearing measurement
Term
audiologist
Definition
the health professional who specializes in the study of hearing impairments
Term
auditory acuity testing
Definition
physical assessment of hearing; useful in differentiating between conductive and sensorineural hearing loss
Term
tuning fork
Definition
two-pronged, forklike instrument that vibrates when struck; used to test hearing, especially bone conduction
Term
otoscopy
Definition
use of an otoscope to examine the external auditory canal and tympanic membrane
Term
tympanometry
Definition
measurement of the conductibility of the tympanic membrane and ossicles of the middle ear by monitoring the response to external airflow pressures
Term
microsurgery
Definition
surgery with the use of a microscope used in delicate tissue such as the ear
Term
myringotomy
Definition
incision into the eardrum, most often for insertion of a small polyethylene (PE) tube to keep the canal open and prevent fluid buildup, such as occurs in otitis media
Term
otoplasty
Definition
surgical repair of the external ear
Term
stapedectomy
Definition
excision of the stapes to correct otosclerosis
Term
tympanoplasty
Definition
vein graft of a scarred tympanic membrane to improve sound conduction
Term
ear lavage
Definition
irrigation of the external ear canal, often to remove excessive buildup of cerumen
Term
antibiotic
Definition
drug that inhibits the growth of or destroys microorganisms; used to treat diseases caused by bacteria (e.g., otitis media)
Term
antihistamine
Definition
drug that blocks the effects of histamine
Term
histamine
Definition
a regulatory body substance released in allergic reactions, causing swelling and inflammation of tissues; seen in hay fever and urticaria (hives)
Term
anti-inflammatory
Definition
a drug that reduces inflammation
Term
decongestant
Definition
a drug that reduces congestion and swelling of membranes, such as those of the nose and eustachian tube in an infection
Term
ear instillation
Definition
introduction of a medicated solution into the external canal, usually administered by drop (gt) or drops (gtt) in the affected ear or ears: AD (auris dextra) right ear, AS (auris sinistra) left ear, AU (aures unitas) both ears
Term
Webber test
Definition
tuning fork on top of head
Term
Rinne test
Definition
tuninn fork on side of head
Term
AD (auris dextra)
Definition
right ear
Term
AS (auris sinistra)
Definition
left ear
Term
AU (aures unitas)
Definition
both ears
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