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15 Cards in this Set

  • Front
  • Back
auricle
outer ear
external auditory meatus
extends from auricle to ear drum
cochlea
"snail" - houses receptor organ for hearing
semicircular canals
lie posterior and lateral to the vestibule. houses receptor for equibilibrium
vestibule
central egg shaped cavity of boney labryinth. equilibrium receptors
tympanic membrane
boundary b/t outer and middle ears. transfers the sound energy to the tiny bones of the middle ear and sets them to vibration
melleus
hammer -
incus
anvil
stapes
stirrup
tensor tympani
skeletal muscle - arises from wall of the auditory tube and inserts on malleus
stapedius
skeletal muscle - runs from posterior wall of middle ear cavity and inserts into stapes. contract to prevent damage to hearing receptors
oval window
vestibular window
round window
cochlear window
vestibulocochlear nerve - vestibular division
transmits impulses associated with equilibrium
cochlear division - vestibulocochlear nerve
connects ear to brain, transmits sense of hearing