How can we help?

You can also find more resources in our Help Center.

64 terms

Chapter 13 The Ear

STUDY
PLAY
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; the inner part lies within the temporal bone of the skull and contains the glands that secrete earwax (cerumen)
tympanic membrane (eardrum)
semitransparent membrane that separates the external auditory meatus and the middle ear cavity; the tympanic membrane transmits sound vibrations to the ossicles
eustachian tube
connects the middle ear and the pharynx; equalizes air pressure on bothe sides of the eardrum
labyrinth (inner ear)
bony spaces within the temporal bone of the skull; it contains the cochlea, semicircular canals, and vestibule
cochlea
is snail-shaped and contains the organ of hearing; connects to the oval window in the middle ear
semicircular canals and vestibule
contains receptors and endolymph that help the body maintain its sense of balance (equilibrium)
mastoid bone and cells
located in the skull bone behind the external auditory meatus
audi/o
hearing
aur/i, aur/o, ot/o
ear
cochle/o
cochlea
laryrinth/o
labyrinth (inner ear)
mastoid/o
mastoid bone
myring/o
tympanic membrane (eardrum)
staped/o
stapes (middle ear bone
tympan/o
tympanic membrane (eardrum), middle ear
vestibul/o
vestibule
labyrinthitis
inflammation of the labyrinth (inner ear); also called vestibular neuritis
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
abdnormal condition of fungus in the ear
otopyorrhea
discharge of pus from the ear
otorrhea
discharge from the ear (may be serous, bloody, consisting of pus, or containg cerebrospinal fluid)
otosclerosis
hardening of the ear (stapes) (caused by irregular bone development and 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 (cranial nerve VIII, vestibulocochlear nerve); may cause hearing loss and may damage structures of the cerebellum as it grows
ceruminoma
tumor of a gland that secretes earwax (cerumen)
cholesteatoma
cystlike mass composed of epithelial cells and cholesterol occurring in the middle ear; may be associated with chronic otitis media
meniere disease
chronic disease of the inner ear charcterized by dizziness, ringing in the ear, and 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
cochlear implant
pertaining to the cochlea implant (surgically inserted prosthetic device that uses electrical currents to stimulate the auditory nerve and provide hearings)
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 and relieve pressure in the middle ear); also called tympanocentesis
stapedectomy
excision of the stapes (performed to restore hearing in cases of otosclerosis; the stapes is replaced by a prosthesis
tympanoplasty
surgical repair (of the hearing mechanism) of the middle ear (including the tympanic membrane and the ossicles)
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 membrane
audiologist
one who studies and specialized in hearing
audiology
study of hearing
aural
pertaining to the ear
cochlear
pertaining to the cochlea
otologist
physician who studies and treats diseases of the ear
otology
study of the ear
otorhinolaryngologist
physician who studies and treats diseases of the ear, nose and larynx (throat); also called otolaryngologist
vestibular
pertaining to the vestibule
vestibulocochlear
pertaining to the vestibule and the cochlea
AOM
acute otitis media
EENT
eyes, ears, nose, and throat
ENT
ears, nose, throat
OM
otitis media