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Anatomy Head And Neck > Ear > Flashcards

Ear Flashcards

(102 cards)

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1
Q

blue arrow

A

bony ear canal

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2
Q

blue arrow

A

vertical macula in the saccule

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3
Q

the facial nerve exits the middle ear through the:

A

stylomastoid foramen (red arrow)

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4
Q

Which cranial nerves provide sensory innervation to the tympanic membrane?

A

mandibular V3, Vagus X = lateral side

glossopharyngeal IX = meidal side

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5
Q

red arrow

A

greater petrosal nerve

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6
Q

hair cells are specialized sensory cellls that:

A

alter the rate they stimulate an associate sensory nerve in response to bending of hair-like projections

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7
Q

blue arrow

A

round window

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8
Q

light blue arrow

A

tympanic plexus

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9
Q

red arrow (function?)

A

vestibular branch of the vestibulocochlear nerve (CN VIII) balance

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10
Q

the cochlea is innervated by

A

the cochlear brans of CN VIII (vestibulocochlear)

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11
Q

blue bracket

A

vestibule

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12
Q

the pharyngotympanic tube is a passage for _______ between the _____ and _______

A

air

pharynx

tympanic cavity

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13
Q

blue arrow

A

round window

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14
Q

green arrow (passing through?)

A

facial nerve, internal acoustic meatus

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15
Q

which organ of the ear is respibsle for balance

A

vestibule (blue bracket)

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16
Q

blue arrow

A

malleus

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17
Q

red arrow

A

umbo of the tympanic membrane (tip of the malleus on the other side)

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18
Q

chorda tympani exits the middle ear and joins with which nerve?

A

lingual nerve (blue arrow)

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19
Q

orange dots sensory innervation

A

facial nerve CN VII

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20
Q

green arrow

A

space between membranous and bony labrynths filled with perilymph

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21
Q

light blue arrow

A

opening of the external acoustic meatus

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22
Q

the middle ear is an air filled space within the _________ portion of the ________ bone

A

petrous and tympanic portions

temporal bone

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23
Q

pink arrow

A

tympanic nerve from CN IX (glossopharyngeal)

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24
Q

the vestibule is innervated by:

A

vestibular branch of CN VIII (vestibulocochlear)

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25
red arrow
incus
26
light blue arrow
tensor tympani
27
red arrow
facial nerve
28
tensor tympani innervation
manddibular nerve V3 (stern's first law)
29
red arrow
jugular foramen (part)
30
which part of the ear is responsble for hearing sensations
inner, middle, and external
31
the **location** of the sound wave transfer from perilymph to endolymph in the cochlear duct is dependent on:
frequency of the sound. higher frequency - towards the beginning, lower frequency towards the end
32
two types of balance organs in the vestibule:
maculae, cirstae
33
ossicles of the ear from lateral to medial
malleus, incus, stapes
34
which portion of the ear is responsible for balance sensation
inner ear only
35
temporal bone is comprised of fused portions:
squamous, tympanic, petrous
36
blue arrow
geniculate ganglion sensory (somatic and taste)
37
tensor tympani function:
dampen your own voice
38
red arrow
promontory
39
an array of progressively shorter projections line up next to the kinocilium on a hair cell is referred to as:
stereocilia (blue bracket)
40
green arrow
stapedius muscle
41
green arrow
cartilaginous ear canal
42
green arrow
flaccid part of the tympanic membrane
43
cristae function:
crests of hair cells stimulated by fluid flow around the semicircular ducts in response to rotation
44
red circle
external acoustic meatus
45
green arrow
horizontal maculae in utricle
46
red bracket
cochlea
47
what detects the pull of gravity in the inner ear
vertical macula of the saccule
48
in the middle ear, the chorda tympani crosses the tympanic membrane between the _____ and \_\_\_\_\_\_\_
malleus(blue arrow) and incus(red arrow) chroda tympani: (pink arrow)
49
blue area sensory innervation
auricular branch of vagus CN X
50
blue arrow (function?)
cochlear branch of vestibulocochlear nerve CN VIII (hearing)
51
blue bracket
stereocilia
52
the spiral organ is stimulated by sound waves transmitted from the _________ to the __________ of the ________ duct
surrounding perilymph, endolymph, cochlear
53
the superior border of the middle ear leads to the:
middle cranial fossa | (greater petrosal nerve exits here)
54
the cristae are located in which specific portion of the semicicular ducts
ampulla
55
red area sensory innervation
lesser occipital nerve
56
blue arrow
antitragus
57
green arrow (passing through what?)
vestibulocochlear nerve CN VIII passing through the internal acoustic meatus
58
The inner ear is a fluid filled space within the ______ portion of the ________ bone
petrous, temporal
59
purple area sensory innervation
great auricular nerve
60
green arrow
zygomatic process of the temporal bone
61
blue arrow
tensor veli palatini
62
tensor tympani origin --\> insertion
small canal superior to pharyngotympanic tube --\> body of malleus inferior to chorda tympani (light blue arrow)
63
red arrow
helix
64
what is the name for the glands that produce ear wax? where are they located?
ceruminous glands, external ear (green arrow)
65
blue arrow
carotid canal
66
stapedius muscle innervation
CN VII facial nerve (green arrow)
67
the tallest single projection out of apex of hair cell is:
Kinocilium (green arrow)
68
green area sensory innervation
auriculotemporal nerve from CN V3
69
green arrow
oval window
70
the inferior border of the middle ear contains:
carotid canal and jugular foamen
71
if the otis media is causing a buling of the tympanic membrane, what will be observed? What does it indicated?
distorted cone of light from otoscope, unhealthy middle ear cavity
72
the posterior border of the middle ear is made of:
mastoid air cells
73
blue arrow
chorda tympani
74
pink arrow
chorda tympani
75
the vertical macula is located in the
saccule
76
blue arrow
tense part of the tympanic membrane
77
the aurcile of the ear is made of:
cartilage support except for the lobe
78
light blue arrow
styloid process of the temporal bone
79
which organ of the ear is responsible for hearing
cochlea (red bracket)
80
green arrow
oval window (to the stapes)
81
green arrow
levator veli palatini
82
the exxternal ear is a part of the ________ bone
temporal
83
How is the pharyngotympanic tube opened?
levator veli palatini (green) , tensor veli palatini (blue)
84
the horizontal macula is located in the:
utricle
85
red arrow
external acoustic meatus
86
what is the boundary between the external and middle ear
tympanic membrane (pink arrow)
87
green arrows
cristae
88
why is it more likely for infectious material from the repiratory or GI tracts to pass into the middle ear cavity resulting in otis media in children than adults?
in young children, the pharyngotympanic tube has a more horizontal orientation
89
blue arrow
mandibular fossa of the temporal bone
90
how are hair cells arranged in the cochlea
one long ribbon that runs the full elngth of the spiral-shaped cochlear duct
91
three parts of the temporal bone
squamous, tympanic, petrous
92
pink arrow
cone of light on the tympanic membrane reflected from otoscope
93
pharyngotympanic tube function
to allow pressure equalization
94
green arrow
spiral organ/ organ of corti
95
How is the pharyngotympanic tube closed?
cartilage passively closes the tube
96
green arrow
tragus
97
purple arrow
mastoid process of the temporal bone
98
pink arrow
tympanic membrane
99
pink arrow
antihelix
100
stapedius muscle action
dampens vibrations of the stapes in reaction to potentially damaging loud sounds (green arrow)
101
green arrow
stylomastoid foramen
102
pink arrow
facial nerve

Anatomy Head And Neck (13 decks)

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