Ear Flashcards
middle ear contains what 3 bones?
auditory ossicles
malleus- hammer
incus-anvil
stapes- stirrup
what auditory ossicles is connected to TM?
malleus
Eustachian tube?
extends from floor of middle ear to nasopharynx
mastoid process
bony structure behind auricle. made up of air cells directly connected to middle air.
inner ear structures?
bony labyrinth & membranous labryinth
bony labyrinth made up of?
vestibule, semicircular canals, cochlea
bony labyrinth is filled with?
perilymph
membranous labyrinth filled with?
endolymph
position sense is determined by what?
endolymph
vestibule receptors asses what?
position of head - BALANCE
semicircular canals assess speed and direction called what?
equilibrium
cochlea aka?
Organ of Corti. Hearing
Presbycusis
age related hearing loss
Audiometry
Tests sensitivity of hearing. wear head phones to hear each tune
Tuning Fork tests?
asses conduction of sound by air and bone