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81 Cards in this Set

  • Front
  • Back
acous/o, audi/o
hearing
aer/o
air or gas
aur/i, ot/o
ear
cerumin/o
wax
salping/o
eustachian tube or uterine tube
tympan/o, myring/o
eardrum
-acusis
hearing condition
anatomic terms
external ear
outer structures of the ear that collect sound
pinna
auricle (little ear); projected part of external ear (pinna=feather)
external auditory meatus or canal
external passage for sounds collected form the pinna to the tympanum
cerumen
waxy substance secreted by glands located throughout the external canal
middle ear
structures in the middle of the ear that vibrate sound from the tympanic membrane to inner ear
tympanic membrane ™
eardrum; drum-like structure that receives sound collected in external auditory canal and amplifies it through the middle ear
malleus
hammer; first of the 3 auditory ossicles of the middle ear
incus
anvil; middle of 3 auditory ossicles of middle ear
stapes
stirrup; last of 3 auditory ossicles of middle ear
eustachain tube/ auditory tube
tube connected middle ear to pharynx (throat)
oval window
membrane that covers opening btw middle ear and inner ear
inner ear / labyrinth
intricate fluid-filled, intercommunicating bony and membranous passages that function in hearing by relaying sound waves to auditory nerve fibers on a path to the brain for interpretation; also sense body mvmt and position to maintain balance and equilibrium
cochlea
coiled tubular structure of the inner ear that contains the organ of Corti (cochlea = snail)
perilymph
fluid that fills the bony labyrinth of the inner ear
endolymph
fluid within the membranous labyrinth of the inner ear
organ of Corti
structure located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing
vestibule
middle part of the inner ear, in front of the semicircular canals and behind the cochlea, that contains the utricle and the saccule; functions to provide body balance and equilibrium
utricle
larger of two sacs within the membranous labyrinth of the vestibule in the inner ear
saccule
smaller of two sacs within the membranous labyrinth of the vestibule in the inner ear (small bag)
semicircular canals
three canals within the inner ear that contain specialized receptor cells that generate nerve impulses with body movement
otalgia / otodynia
earache
otorrhagia
bleeding from the ear
otorrhea
purulent drainage from the ear
tinnitus
jingling; ringing or buzzing in the ear
vertigo
a turning round; dizziness
diagnostic terms
otitis externa
inflammation of the external auditory meatus (canal)
cerumen impaction
excessive buildup of wax in the ear that often reduces hearing acuity, especially in elderly persons
myringitis / tympanitis
inflammation of the eardrum
otitis media
inflammation of the middle ear
aerotitis media
inflammation of the middle ear from changes in atm press. Often occurs with frequent air travel
eustachian obstruction
blockage of the eusachain tube, usually as a result of infection, as in otitis media
otosclerosis
hardening of the bony tissue in the ear
acoustic neuroma
benign tumor on the auditory nerve (8th cranial nerve) that causes vertigo, tinnitus, and hearing loss
labyrinthitis
inflammation of the labyrinth (inner ear)
Ménière disease
disorder of inner ear resulting from an excessive buildup of endolymphatic fluid, causing episodes of vertigo, tinnitus, nausea, vomiting, and hearing loss; one or both ears can be affected, and attacks vary in both freq and intensity
deafness
gen term for partial or complete loss of hearing
conductive hearing loss
hearing impairment caused by interference with sound or vibratory energy in the external canal, middle ear, or ossicles
sensorineural hearing loss
hearing impairment caused by lesions or dysfunction of the cochlea or auditory nerve
mixed hearing loss
combination of sensorineural and conductive hearing loss
presbyacusis/ presbycusis
hearing impairment in old age
diagnostic tests and procedures
audiometry
process of measuring hearing
audiometer
instrument to measure hearing
audiogram
record of hearing instrument
audiologist
health professional who specializes in the study of hearing impairments
auditory acuity testing
physical assessment of hearing; useful in differentiating btw conductive and sensorineural hearing loss
tuning fork
2-pronged fork-like instrument that vibrates when struck; used to test hearing, esp bone conduction
brainstem auditory evoked potential (BAEP)/ brainstem auditory evoked response (BAER)
electrodiagnostic testing that uses computerized equipment to measure involuntary responses to sound within the auditory nervous system; commonly used to assess hearing in newborns
otoscopy
use of an otoscope to examine the external auditory canal and tympanic membrane
pneumatic otoscopy
otoscopic observation of the tympanic membrane as air is released into the external auditory meatus; immobility indicates the presence of middle ear effusion (fluid buildup), as occurs as a result of otitis media
tympanometry
measurement of the compliance and mobility (conductibility) of the tympanic membrane and ossicles of the middle ear by monitoring the response to external airflow pressures
microsurgery
surgery with the use of a microscope used on delicate tissue, such as the ear
myringotomy/ tympanostomy
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
otoplasty
surgical repair of the external ear
stapedectomy
excision of the stapes to correct otosclerosis
tympanoplasty
vein graft of a scarred tympanic membrane to improve sound conduction
auditory prosthesis
any internal or external device that improves or substitutes for natural hearing
hearing aid
an external amplifying device designed to improve hearing by more effective collection of sound into the ear
cochlear implant
an electronic device implanted in the cochlea that provides sound perception to px with severe or profound sensorineural (nerve)hearing loss in both ears
ear lavage
irrigation of the external ear canal, often to remove excessive buildup of cerumen
ear instillation
introduction of a medicated soln into the external canal, usually administered by drop (gt) or drops (gtt) in the affected ears
drugs
antibiotic
a drug that inhibits the growth of or destroys microorganisms; used to tx diseases caused by bacteria (eg otitis media)
antihistamine
a drug that blocks the effects of histamine
histamine
a regulatory body substance released in allergic rxns; causing swelling and inflammation of tissues; seen in hay fever and urticaria (hives)
antiinflammatory
a drug that reduces inflammation
decongestant
a drug that reduces congestion and swelling of membranes, such as those of the nose and eustachian tube in an infection
BAEP
brainstem auditory evoked potential
BAER
brainstem auditory evoked response
ENT
ear, nose, throat
PE
polyethylene
TM
tympanic membrane