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47 Cards in this Set

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auricle (pinna)
external structure located on both sides of the head; directs sound waves into the external auditory meatus
external auditory meatus (canal)
short tube that ends at the tympanic membrane; inner part lies w/in the temporal bone of the skull & contains the glands that secrete earwax (cerumen)
tympanic membrane (eardrum)
semitransparent membrane that separates the external auditory meatus & the middle ear cavity
eustachian tube
connects the middle ear & the pharynx; it equalizes air pressure on both sides of the eardrum
ossicles
bones of the middle ear that carry sound vibrations; composed of the malleus, incus & stapes (hammer, anvil, stirrup)
labyrinth (inner ear)
bony spaces w/in the temporal bone of the skull; contains the cochlea, semicircular canals, & vestibule
cochlea
is snail-shaped & contains the organ of hearing; connects to the oval window in the middle ear
semicircular canals & vestibule
contains receptors & endolymph that help the body maintain its sense of balance
mastoid bone & cells
located in the skull bone behind the external auditory meatus
labyrinthitis
inflammation of the labyrinth (inner ear)
mastoiditis
inflammation of the mastoid bone
myringitis
inflammation of the tympanic membrane (eardrum)
otalgia
pain in the ear
otomastoiditis
inflammation of the ear and the mastoid bone
otomycosis
abnormal condition of fungus in the ear (usually affects the external auditory meatus)
otopyorrhea
discharge of pus from the ear
otosclerosis
hardening of the ear (stapes) caused by irregular bone development & resulting in hearing loss)
tympanitis
inflammation of the middle ear (also called otitis media)
acoustic neuroma
benign tumor within the auditory canal growing from the acoustic nerve; may cause hearing loss
ceruminoma
tumor of a gland that secrets earwax (cerumen)
Meniere disease
chronic disease of the inner ear characterized by dizziness & ringing in the ear & hearing loss
otitis externa
inflammation of the outer ear
otitis media (OM)
inflammation of the middle ear
presbycusis
hearing impairment in old age
tinnitus
ringing in the ears
vertigo
a sense that either one's own body (subjective vertigo) or the environment (objective vertigo) is revolving; may indicate inner ear disease
labyrinthectomy
excision of the labyrinth
mastoidectomy
excision of the mastoid bone
mastoidotomy
incision into the mastoid bone
myringoplasty
surgical repair of the tympanic membrane
myringotomy
incision into the tympanic membrane (performed to release pus or fluid & relieve pressure in the middle ear) (tympanocentesis)
stapedectomy
excision of the stapes (performed to restore hearing in cases of osteosclerosis;stapes is replaced by a prosthesis)
tympanoplasty
surgical repair of the middle ear
acoumeter
instrument used to measure (acuteness of) hearing
audiogram
(graphic) record of hearing
audiometer
instrument used to measure hearing
audiometry
measurement of hearing
otoscope
instrument used for visual examination of the ear
otoscopy
visual examination of the ear
tympanometer
instrument used to measure middle ear function
tympanometry
measurement (movement) of the tympanic membrane
audiologist
one who studies and specializes in hearing
audiology
study of hearing
aural
pertaining to the ear
otologist
physician who studies and treats diseases of the ear
otology
study of the ear (a branch of medicine that deals w/disease of the ear)
otorhinolaryngologist (ENT)
the ear,nose, and larynx (throat). also called otolaryngologist