Ch. 18 Day 2 Flashcards

1
Q

part of ear that collects sound waves and directs them to middle ear

A

external ear

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

part of ear we can see

A

auricle/pinna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

2nd part of where sound waves go

A

external acoustic meatus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

seperates external and mid ear

A

tympanic membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

line ear canal

A

ceruminous glands

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

most of middle ear is the

A

typmanic cavity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

tube in ear that is about 4 cm long

A

auditory tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

auditory tube helps

A

equalize pressure/balance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

middle ear three auditory ossicles

A

malleus, incus, stapes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

malleus fake name

A

hammer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

incus fake name

A

anvil

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

stapes fake name

A

stirrup

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

malleus articulates with the

A

tympanic membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

when malleus vibrates it vibrates the

A

incus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

stapes sits on what

A

oval window

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

auditory ossicles are important to

A

amplify sounds

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

muscles that protect violent vibrations for middle ear

A

tensor tympani, stapedius

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

inner ear is where there is

A

balance and equilibrum special house receptors

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

coiled pathway in the ear is the

A

bony labyrinth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

snail head of bony labyrinth is called

A

vestibule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

snail antena of bony labrinith is called

A

semicircular canals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

middle of snail bony labrinith

A

cochlea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

soft structure in snail bony labyrinth

A

membranous labyrinth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

soft structure to fill in the

A

utricle
saccule

25
Q

soft structure to fill in semicircular canals

A

semicircular ducts

26
Q

soft structure to fill in cochlea

A

coclear duct

27
Q

fluid in bony labyrinth

A

perilymph

28
Q

fluid in membranous labyrinth

A

endolymph

29
Q

in vestibule two sacs called

A

utricle and saccule

30
Q

utricle and saccule contain clusters of hair cells called

A

maculae

31
Q

cilia of hair cells are embedded into

A

otolithic membrane

32
Q

otolithic membrane is packed with crystals called

A

otoliths

33
Q

hair cells synapse with afferent fibers from CN

A

CNVII

34
Q

utricle orientation

A

horizontally

35
Q

saccule orientation

A

vertically

36
Q

utricle to sense

A

forward acceleration and deceleration

37
Q

saccule to sense

A

verticle acceleration and deceleration

38
Q

semicicular ducts detect

A

angular motion

39
Q

each semicircular duct has a swelling called

A

ampulla

40
Q

ampulla have clustors of

A

hair cells

41
Q

hair cells of ampulla are on

A

ampullary crest

42
Q

cilia of hair cells are embedded in

A

ampullary cupula

43
Q

hair cells monitored by neurons from the

A

vestibular ganglion

44
Q

axons of these vestibular ganglion form

A

vestibular nerve

45
Q

coiled makes 2.5 turns in the central hub

A

cochlea

46
Q

cochlea central hub called

A

modioulus

47
Q

central cochlear duct is filled with

A

endolymph

48
Q

cochlea oval window is at the base of the

A

vestibular duct

49
Q

oval window filled with

A

perilymph

50
Q

round window is at base of

A

tympanic duct

51
Q

round window is filled with

A

perilymph

52
Q

spiral organ aka

A

organ of corti

53
Q

spiral organ have cilia of

A

hair cells

54
Q

spiral organ more flexible basilar membrane than

A

tectorial membrane

55
Q

spiral organ hair cells monitored by neurons from the

A

spiral ganglion

56
Q

axons of spiral ganglion form the nerve CN

A

CNVIII

57
Q

basilar membrane that is low frequency has

A

low pitch

58
Q

CNVIII cochlear nuclei is in the

A

medulla oblongata

59
Q

CNVIII has inferior colliculi on

A

both sides
thalamus
auditory cortex