Medical Terminology Ch11
Terms
undefined, object
copy deck
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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
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tympan/o
myring/o - eardrum
- -acusis
- hearing condition
- pinna
-
external ear:
auricle (little ear); projected part of the external ear
(pinna=feather) - external auditory canal
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external ear:
external passage for sounds collected from the pinna to the tympanum - cerumen
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external ear:
waxy substance secreted by glands located throughtout the external canal - tympanic membrane (TM)
-
middle ear:
eardrum; drumlike structure that reveives sound collected in the external auditory canal and amplifies it through the middle ear - malleus
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middle ear:
hammer; first of the three auditory ossicles of the middle ear - incus
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middle ear:
anvil; middle of the three auditory ossicles of the middle ear - stapes
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middle ear:
stirrup; last of the three auditory ossicles of the middle ear -
eustachian tube
auditory tube -
middle ear:
tube connecting the middle ear to the pharynx (throat) - oval window
- membrane that covers the opening between the middle ear and the inner ear
- labyrinth
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inner ear:
maze; inner ear consisting of bony and membranous passages - cochlea
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inner ear:
coiled tubular structure of the inner ear that contains the organ of corti
(cochlea=snail) - perilymph
-
inner ear:
fluid that fills the bony labyrinth of the inner ear - endolymph
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inner ear:
fluid within the cochlear duct of the inner ear - organ of corti
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inner ear:
organ located in the cochlea; contains receptors (hair cells) that receive vibrations and generate nerve impulses for hearing - vestibule
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inner ear:
middle part of the inner ear in front of the semilunar canals and behind the cochlea that contains the utricle and the saccule - utricle
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inner ear:
larger of two sacs within the membranous labyrinth of the vestibule in the inner ear (uter = leather bag) - saccule
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inner ear:
smaller of two sacs within the membranous labyrinth of the vestiblue in the inner ear
(sacculus = small bag) - semicircular canals
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inner ear:
three canals within the inner ear that contain specialized receptor ce-lls that generate nerve impulses with body movement - anacusis
- total hearing loss
-
otalgia
otodynia - earache
- otorrhagia
- bleeding from the ear
- otorrhea
- purulent drainage from the ear
- paracusis
- impaired hearing
- tinnitus
- a jingling; ringing or buzzing in the ear
- vertigo
- a turning round; dizziness
- otitis externa
- inflammation of the external auditiory canal
- cerumen impaction
- excessive buildup of wax in ear, often reducing hearing acuity, especially in elderly persona
-
myringitis
tympanitis - inflammation of the eardrum
- otitis media
- inflammation of the middle ear
- aerotitis media
- inflammation of the middle ear from changes in atmospheric pressure; often occurs in frequent air travel
- eustachian obstruction
- blockage of the eustachian tube usually as a result of infection, as in otitis media
- labyrinthitis
-
inflammation of the labyrinth
(inner ear) - otosclerosis
- hardening of the bony tissue in the ear
- deafness
- general term for partial or complete hearing loss
- 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 lesiosn or dysfunctionn of the cochlea or auditory nerve
-
presbyacusis
presbycusis - hearing impairment in old age
- audiometry
- process of measuring hearing
- audiologist
- health professional who specialized in the study of hearing impairments
- auditory acuity testing
-
physical assessment of hearing
differentiating between conductive and sensorineural hearing loss - tuning fork
- two pronged forklike instrument, used to test hearing, 'specialy bone conduction
- otoscopy
- use of an otoscope to examine the external auditory canal and tympanic membrane
- tympanometry
- measurement of the 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
- myringotomy
- 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
- ear lavage
- irrigation of the external ear canal, often to remove excessive buildup of cerumen
- ear instillation
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introduction of a medicaled solution into the exteral canal, usually administered by drop (gt) or drops (gtt) in the affected ear
AD right ear
AS left ear
AU both ears