LESSON 2 hearing and equilibrium

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Last updated 1:38 AM on 9/30/26
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104 Terms

1
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<p>A</p>

A

Auricle

2
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<p>B</p>

B

Helix

3
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<p>C</p>

C

Lobule

4
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<p>D</p>

D

External ear

5
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<p>E</p>

E

External acoustic meatus

6
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<p>F</p>

F

Middle ear

7
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<p>G</p>

G

Internal ear (labyrinth)

8
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<p>H</p>

H

Tympanic membrane

9
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<p>I</p>

I

Auditory tube

10
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<p>J</p>

J

Malleus

11
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<p>K</p>

K

Incus

12
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<p>L</p>

L

Stapes

13
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<p>M</p>

M

Auditory ossicles

14
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Lobule

No cartilage

15
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Middle ear

Tympanic membrane and auditory ossicles

16
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Inner ear

Embedded with bone

17
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External ear

To the tympanic membrane

18
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Bony labryinth

(Cavity in temporal bone) filled with perilymph

19
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Structures in the bony labryinth

Semicircular canals, vestibule, cochlea

20
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Membranous labyrinth

Filled with emdolymph

21
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Structures in the membranous labyrinth

Semicircular ducts, utricle, saccule, cochlear duct

22
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Structures that contain receptors

Spiral organ, maculae, ampullae

23
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Spiral organ function

Hearing

24
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Maculae function

Equilibrium- static and linear acceleration of head

25
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Ampullae function

Equilibrium- rotational acceleration of head

26
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<p>A</p>

A

Anterior semicircular duct

27
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<p>B</p>

B

Posterior semicircular duct

28
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<p>C</p>

C

Lateral semicircular duct

29
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<p>D</p>

D

Cristal ampullares in the membranous ampullae

30
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<p>E</p>

E

Utricle in vestibule

31
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<p>F</p>

F

Succulents in vestibule

32
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<p>G</p>

G

Stapes in oval window

33
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<p>H</p>

H

Facial nerve

34
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<p>I</p>

I

Vestibular nerve

35
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<p>J</p>

J

Superior vestibular ganglion

36
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<p>K</p>

K

Inferior vestibular ganglion

37
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<p>L</p>

L

Cochlear nerve

38
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<p>M</p>

M

Maculae

39
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<p>N</p>

N

Spiral organ

40
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<p>O</p>

O

Cochlear duct in cochlea

41
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<p>P</p>

P

Round window

42
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What do hair cells do

Send signals to brain

43
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<p>A</p>

A

Scali vestibuli (perilymph)

44
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<p>B</p>

B

Scalia tympanic (perilymph)

45
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<p>C</p>

C

Vestibular membrane

46
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<p>D</p>

D

Tectorial membrane

47
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<p>E</p>

E

Cochlear duct (endolymph)

48
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<p>F</p>

F

Stria vascularis

49
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<p>G</p>

G

Spiral organ

50
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<p>H</p>

H

Basilar membrane

51
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<p>I</p>

I

Osseous spiral lamina

52
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<p>J</p>

J

Spiral ganglion

53
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<p>A</p>

A

Tectorial membrane

54
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<p>B</p>

B

Stereocilia (hairs)

55
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<p>C</p>

C

Outer hair cells

56
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<p>D</p>

D

Supporting cells

57
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<p>E</p>

E

Basilar membrane

58
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<p>F</p>

F

Inner hair cell

59
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<p>G</p>

G

Afferent nerve fiber

60
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<p>H</p>

H

Fibers of cochlear nerve

61
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Tectorial membrane

Jelly-like material that covers the hair cells

62
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Hair cells bending-

Sends signal down cranial nerve 8

63
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How do we hear

Vibration moves tympanic membrane, moves through ossicles, hits oval window at frequency

64
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Slow waves formed in perilymph=

Low voice

65
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Fast waves formed in perilymph=

High voice

66
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<p>A</p>

A

Stapes

67
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<p>B</p>

B

Oval window

68
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<p>C</p>

C

Scala vestibuli

69
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<p>D</p>

D

Perilymph

70
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<p>E</p>

E

Cochlear nerve

71
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<p>F</p>

F

Round window

72
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<p>G</p>

G

Scala tympani

73
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<p>H</p>

H

Basilar membrane

74
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<p>I</p>

I

Cochlear duct

75
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Hair cells that accumulate the most damage are-

With high frequency sounds

76
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Long hair cells at apex-

Pic up low frequency sounds

77
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Short hair cells at base

Pick up high frequency sounds

78
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Sensorineural deafness

Damage anywhere from cochlear hair cells through neurons of auditory complex

79
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Presbycusis

Cannot hear high tones

80
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Damage to stereocilia is…

Progressive and cumulative

81
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Equilibrium

Vestibule and semicircular canals

82
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Vestibule

Utricle and saccule

83
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Semicircular canals

Semicircular ducts

84
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<p>A</p>

A

crista ampullaris

85
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<p>A</p>

A

Crista ampullaris

86
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<p>B</p>

B

Fibers of vestibular nerve

87
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<p>C</p>

C

Ampulla

88
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<p>D</p>

D

Ampullary cupula

89
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<p>E</p>

E

Hair bundle

90
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<p>F</p>

F

Hair cell

91
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<p>G</p>

G

Supporting cell

92
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Crista ampullaris

Receptor region

93
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Crista ampullaris

Receptor region

94
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Ampullary cupula

Hair cells covered in gelatinous cup

95
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<p>A</p>

A

Otolith membrane

96
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<p>B</p>

B

Kinocilium

97
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<p>C</p>

C

Stereocilia

98
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<p>D</p>

D

Hair cell

99
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<p>E</p>

E

Receptor potential

100
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<p>F</p>

F

Depolarization