The Ear Flashcards

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1
Q

parts of the ear

A

pinna, tympanic mambrain, ossiclea (3 bones), dynamic equalibrium, auditory canal, vestibule (static equalibrium(, cochlea

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2
Q

pinna

A
  • outer part of external ear
  • amplifies sound by funnelling it from a large area into the narrow auditory canal
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3
Q

auditory canal

A

carries soundwaves to tympatic membrane

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4
Q

tympatic membrane

A

recieves sound waves (eardrum)

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5
Q

ossicles

A
  • malleus, incus, stapes
    tiny bones that amplify and carry sound in the middle ear
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6
Q

oval window

A
  • recieves sound waves from the ossicles
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7
Q

eustachian tube

A

air filled tube of the middle ear that equalizes pressure between the outer and middle ear

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8
Q

cochlea

A

coild tube within the middle ear that recives soundwaves and converts them into nerve impulses

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9
Q

organ of corti

A

vibration causes the fluid in the cochlea to move bending the little hairs (corti) sending a signal to the brain

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10
Q

vestibule

A

chamber at the base of the semicircular canal
- concerned with static equalibrium; left, right, up, down

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11
Q

semicircular canals

A

fluid filled structures the provide information for dynamic equalibrium; flips, rollercoasters, ect.

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