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40 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 mm; contains glands that secrete earwax
tympanic mm (eardrum)
semitransparent mm that separates the external auditory meatus and the middle ear cavity; transmits sound vibrations to the ossicles
eustachian tube
connects middle ear and the pharynx; equalizes pressure on both sides of th eardrum
ossicles
bones of the middle ear that carry sound vibrations; ossicles are composed of malleaus. incus, and stapes
labyrinth (inner ear)
bony spaces w/n temporal bone of the skull; contains cochlea, semicircular canals, vestibule
semicircular canals and vestibule
contains receptors and endolymph that help the body maintain it sense of balance (equilibruim)
mastoid bone and cells
located in the skull bone behind the external auditory meatus
labrynthitis/ mastoiditis/ myringitis/ otomastoiditis/ tympanitis
inflammation of the labyrinth/ mastoid bone/ tympanic mm/ ear and mastoid bone/ middle ear
otalgia
pain in the ear
otomycosis
abnormal condition of fungus in the ear
otopyorrhea
discharge of pus from the ear
otorrhea
discharge from the ear (may be serous, bloody, etc)
otosclerosis
hardening of the ear
acoustic neuroma
benign tumor w/n auditiry canal growing form the acoustic nerve; may cause hearing loss and damage structures of the cerebellum
ceruminoma
tumor of a gland that secretes earwax
cholesteatoma
cystlike mass composed of epithelial cells and cholesterol ocurring in the middle ear;
Meniere d.
chronic d. of the inner ear chara. by dizziness, ringing in the ear, and hearing loss
otitis externa/ media
inflammation of the outer/ middle ear
presbycusis
hearing impairment in old age
tinnitus
ringing in the ears
vertigo
sense that either one's own body or the environment is revolving; may indicate inner ear d.
cochlear implant
pertaining to the cochlea implant; surgically inserted prosthetic device that uses electrical currents to stimulate the auditory nerve and provide hearing)
labyrinthectomy/ mastoidectomy/ stapedectomy
excision of the labyrinth; mastoid bone; stapes
mastoidotomy/ myringotomy
incision into the mastoid bone/ tympanic mm
myringoplasty/ tympanoplasty
surgical repair of the tympanic mm/ of middle ear
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 of movement of the tympanic mm
audiologist
one who studies and specializes in hearing
audiology/ otology
study of hearing/ ear
aural/ cochlear/ vestibular/ vestibulocochlear
pertaining to the ear/ cochlea/ vestibule/ vestibule and cochlea
otologist/ otorhinolaryngologist
physician who studies and treats d. of the ear/ ear, nose, and larynx
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