The ear Flashcards
frequency
pitch
cerebral cortex
interprets meaning of sounds
brainstem
identifies the location of the sound and identifies it
peripheral
vibrations in the inner ear send electrical impulses to CN VIII
mass loading
fluid build up in the ear
stiffness effect
otosclerosis (ossicles harden)
discontinuity
ossicular disruption. less common due to trauma
ototoxicity
gentamycin, ASA, lasiks
acoustic neuroma
benign tumor of the middle ear
muscular sclerosis
younger person
presbycusis
gradual degeneration of the ear due to aging
tophi
small white/yellow non tender nodules, chalky material of uric acid
sebaceous cyst
blocked sebaceous gland
tinnitus
ringing or noise, mineres disease, hearing loss
keloid
over growth of scar tissue
carcinoma
ulcerated, crusted nodule with induration
atresia
absence or closure of ear canal
adult
pull pinna back and out
child
pull pinna down and out
whisper test
stand behind someone whisper and see if they can hear it, and what ear they hear it in
tuning fork
test AC/BC
AC is always ____ than BC
greater than
