Question | Answer |
AD | right earLatin: auris dextra |
AOM | acute otitis media |
AS | left earLatin: auris sinistra |
EENT | eyes, ears, nose & throat |
ENG | electronystagmography |
ENT | ears, nose, & throat |
HEENT | head, eyes, ears, nose & throat |
PE tube | pressure-equalizing tube |
SOM | serous otitis media |
acoustic | pertaining to hearing |
auditory canal | channel leading from ear flap to eardrum |
auditory meatus | about an inch in length, is a slender canal lined with glands that secrete cerumen |
auditory nerve fibers | carry impulses from inner ear to cerebral cortex |
auditory tube | channel between middle ear & throat; eustachian tube |
aural | pertaining to the ear |
auricle | skin-covered cartilaginous flap, projects from the side of the head; pinna |
cerumen | ear wax; lubricates the ear and prevents the entry of foreign particles into internal portions of ear |
cochlea | snail-shaped, spirally wound tube in inner ear |
contains hearing-sensitive receptors | cochlea |
cochlear | pertaining to cochlea |
deafness | loss of ability to hear |
endolymph | fluid within labyrinth of inner ear, conducts cound waves |
eustachian tube | channel between middle ear & throat; auditory tube |
incus | small, anvil-shaped ossicle in middle ear |
the second ossicle is | the incus |
labyrinth | maze-like series of canals of inner ear |
cochlea, vestibule & semicircular canals make up | the labyrinth |
malleus | hammer-shaped, small ossicle in middle ear |
ossicle | small bone |
malleus, incus, & stapes make up | the ossicles of middle ear |
otic | pertaining to the ear |
oval window | membrane between middle & inner ears |
perilymph | fluid contained in labyrinth |
pinna | outer ear flap; auricle |
postauricular | pertaining to behind the ear |
salpingopharyngeal | pertaining to eustachian tube & throat |
semicircular canals | passageways in inner ear that are associated with maintaing equilibrium |
stapes | small, stirrup-shaped bone in middle ear |
third ossicle | stapes |
tympanic membrane | shiny, oval, semitransparent membrane between outer & middle ear |
eardrum is another name for | the tympanic membrane |
vestibule | central cavity of labyrinth, connecting cochlea & semicircular canals |
vestibulocochlear | pertainings to vestibule & cochlea |
ear serves dual functions as a sense organ | hearing & equilibrium |
anatomical regions of th ear | outer, middle, and inner |
outer ear consists of | auricle & auditory meatus |
lies at the end of the external auditory canal and at the entry to the middle ear | tympanic membrane |
articulate with one another | ossicles |
provides for an equalization of air pressure between middle ear & external atmosphere | eustachian tube |
membranous labyrinth | contains a protein-rich fluid called endolymph and is surrounded by the bony labyrinth |
bony labyrinth | contains a clear liquid known as perilymph & surrounds membranous labyrinth |
organ of Corti | sensitive receptor whose hair cells relay sound waves to auditory nerve fibers |
ogran of Corti is located | in the cochlea |
auditory nerve fibers convey impulses to the auditory region of the cerebral cortex from | the organ of Corti |
The term cochlea means | snail |
Sound waves, conducted by air, enter the ear with the aid of | the auricle |
sound waves entering the auricle, are conducted along the auditory meatus to | the tympanic membrane |
when the taut tympanic membrane recives sound waves it | begins to vibrate |
vibrations by the eardrum move | the ossicles |
ossicle amplfiy sound waves & conduct them through the middle ear to | the oval window & into inner ear |
sounds coming through oval window are picked up by | sensory hair cells of cochlea, |
structures of the ear involved in maintaining equilibrium are found in | the vestibule & semicircular canals |
Sensitive hair cells and fluid within these structures allow | detection of changes in the position of the head |
Movement of the hair cells within the ___ generate nerve impulses | macula |
communicate through the brain to the body's muscles and provide for the recovery of balance | hair cells within macula |