ear structures Flashcards

1
Q

external ear function

A

hearing only

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2
Q

middle ear function

A

hearing only

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3
Q

inner ear function

A

equilibrium and hearing

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4
Q

which part(s) of the ear involve hearing

A

external ear, middle ear, inner ear

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5
Q

which part(s) of the ear involve only hearing

A

external ear, middle ear

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6
Q

which part(s) of the ear involve equilibrium

A

inner ear

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7
Q

pinna structure

A

elastic cartilage covered in skin

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8
Q

pinna function

A

collects and directs sound waves into the external acoustic meatus

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9
Q

elastic cartilage covered in skin

A

pinna

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10
Q

collects and directs sound waves into the external acoustic meatus

A

pinna

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11
Q

external acoustic meatus structure

A

short, narrow canal carved into the temporal bone; lined with ceruminous glands

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12
Q

external acoustic meatus function

A

transmits sound waves from the pinna to the tympanic membrane

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13
Q

short, narrow canal carved into the temporal bone; lined with ceruminous glands

A

external acoustic meatus

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14
Q

transmits sound waves from the pinna to the tympanic membrane

A

external acoustic meatus

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15
Q

tympanic membrane structure

A

thin membrane that separates the external ear from the middle ear

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16
Q

tympanic membrane function

A

vibrates at exactly the same frequency as the sound waves hitting it and transmits vibrations to the auditory ossicles

17
Q

thin membrane that separates the external ear from the middle ear

A

tympanic membrane

18
Q

vibrates at exactly the same frequency as the sound waves hitting it and transmits vibrations to the auditory ossicles

A

tympanic membrane

19
Q

malleus structure

A

tiny bone shaped like a hammer; its handle is attached to the eardrum

20
Q

malleus function

A

transmits and amplifies vibrations from the tympanic membrane to the incus

21
Q

tiny bone shaped like a hammer; its handle is attached to the eardrum

A

malleus

22
Q

transmits and amplifies vibrations

A

malleus

23
Q

incus structure

A

tiny bone shaped like an anvil that articulates with the malleus and the stapes

24
Q

incus function

A

transmits and amplifies vibrations from the malleus to the stapes

25
Q

tiny bone shaped like an anvil that articulates with the malleus and the stapes

A

incus

26
Q

transmits and amplifies vibrations from the malleus to the stapes

A

incus

27
Q

stapes structure

A

tiny bone shaped like a stirrup; its base fits into the oval window

28
Q

stapes function

A

transmits and amplifies vibrations from the incus to the oval window

29
Q

tiny bone shaped like a stirrup; its base fits into the oval window

A

stapes

30
Q

transmits and amplifies vibrations from the incus to the oval window

A

stapes

31
Q

oval window structure

A

oval-shaped membrane located deep to the stapes

32
Q

oval window function

A

transmits vibrations from the stapes to the perilymph of the scala vestibuli

33
Q

oval shaped membrane located deep to the stapes

A

oval window

34
Q

transmits vibrations from the stapes to the perilymph of the scala vestibuli

A

oval window

35
Q

auditory tube structure

A

a tube that connects the middle ear to the superior portion of the pharynx

36
Q

auditory tube function

A

equalizes the pressure in the middle ear cavity with the external air pressure so that the tympanic membrane can vibrate properly

37
Q

a tube that connects the middle ear to the superior portion of the pharynx

A

auditory tube

38
Q

equalizes the pressure in the middle ear cavity with the external air pressure so that the tympanic membrane can vibrate properly

A

auditory tube

39
Q
A