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BMB Test 2 > B7-025 Cranial Nerves 1 > Flashcards

B7-025 Cranial Nerves 1 Flashcards

1
Q

mnemonic for sensory/motor function of the cranial nerves

A

Some
Say
Marry
Money
But
My
Brother
Says
Bad
Business
to Marry
Money

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2
Q

cell bodies serving the sensory components of facial nerve live in the […]

A

geniculate ganglion

(includes taste, muscles, and skin afferents)

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3
Q

the skin afferents of the facial nerve go to […] nucleus

A

spinal trigeminal or solitary

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4
Q

the taste afferents of the facial nerve go to […] nucleus

A

gustatory (solitary)

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5
Q

branches of the facial nerve innervating the muscles of facial expression exit from the […] nucleus

A

facial motor nucleus

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6
Q

the parasympathetic fibers of the facial nerve synapse at the […] ganglion [2]

A

pterygopalatine
submandibular

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7
Q

the parasympathetic fibers of the facial nerve exit the […] nucleus

A

superior salivatory

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8
Q

cranial nerves that are all sensory [3]

A

I olfactory
II optic
VIII vestibulococchlear

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9
Q

cranial nerves that are all motor [5]

A

III oculomotor
IV trochlear
VI abducens
XI accessory
XII hypoglossal

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10
Q

cranial nerves with both sensory and motor functions [4]

A

V trigeminal
VII facial
IX glossopharyngeal
X vagus

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11
Q

the axons of the olfactory nerve synapse at the […]

A

olfactory bulb

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12
Q

damage to CN 1 results in

A

anosmia

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13
Q

the axons of the optic nerve synapse in the […]

A

thalamus

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14
Q

the sensory neurons of the optic nerve are in the […]

A

retina

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15
Q

damage leads to monocular visual field deficit

A

CN II optic

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16
Q

the sensory neurons of CN VIII responsible for balance are in the […]

A

vestibular ganglion

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17
Q

the sensory neurons of CN VIII responsible for hearing are in the […]

A

auditory ganglion

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18
Q

the axons for CN VIII synapse in the […]

A

brainstem

at vestibular or cochlear nuclei

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19
Q

damage results in hearing loss or balance loss

A

CN VIII

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20
Q

three cranial nerves that innervate extraoccular muscles [3]

A

III oculomotor
IV trochlear
VI abducens

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21
Q

innervates the trapezius and sternocleidomastoid

A

XI spinal accessory

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22
Q

innervates the intrinsic muscles of the tongue

A

XII hypoglossal

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23
Q

parasympathetic function: pupillary constriction, lens accommodation

A

III occulomotor

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24
Q

cranial nerves with parasympathetic function [4]

A

III occulomotor
VII facial
IX glossopharyngeal
X vagus

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25
Q

parasympathetic function: salivation, lacrimation

A

VII facial

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26
Q

parasympathetic function: salivation via parotid

A

IX glossopharyngeal

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27
Q

parasympathetic function: visceral function, heart rate

A

vagus

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28
Q

innervates the superior oblique muscle of the eye

A

IV trochlear

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29
Q

innervates the lateral rectus muscle of the eye

A

VI abducens

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30
Q

innervates the levator palpebrae muscle to lift eyelid

A

III occulomotor

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31
Q

the motor neurons of CN III, IV, VI are located in the […]

A

III, IV are in midbrain
VI is in the pons

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32
Q

unilateral damage to any of the three CNs controlling extraoccular muscles will result in

A

diplopia

33
Q

what CN is damaged in this picture?

A

III occulomotor

Note: mydriasis and manually lifting eyelid

34
Q

damage to […] results in the inability to move the eye out laterally

A

VI abducens

35
Q

damage results in inability to shrug shoulder and turn head

A

XI spinal accessory

36
Q

the motor neurons for spinal accessory are located […]

A

in the spinal cord (C1-5)

37
Q

damage results in abnormal tongue protrusion

A

CN XII

38
Q

motor neurons for CN XII are located in the […] nucleus

A

hypoglossal

39
Q

most likely to be damaged by loss of blood supply to the midline of the brainstem [4]

A

CN III, IV, VI, and XII

live along the midline

40
Q

damage to […] causes facial numbness and difficulty chewing

A

CN V

41
Q

sensory function of CN V

A

somatic sensation of the face

42
Q

innervates muscles of mastication, tensor palati, and tensor tympani

A

CN V

43
Q

sensory nerves of CN VII synapse in the […] nucleus [2]

A

spinal trigeminal
solitary

44
Q

innervates the muscles of facial expression and stapedius

A

CN VII

45
Q

parasympathetic function: innervates the salivary, lacrimal, and nasal glands

A

CN VII

46
Q

damage causes loss of taste, facial paralysis, and parasympathetic dysfunction

A

CN VII

47
Q

[…] ganglion of CN VII innervates the lacrimal gland

A

sphenopalatine ganglion

48
Q

[…] ganglion of CN VII innervates the submandibular gland

A

submandibular ganglion

49
Q

the cell bodies of the nerve providing parasympathetic function of CN VII originate in the

A

superior salivatory nucleus (pons)

50
Q

damage causes loss of taste and gag reflex

A

CN IX glossopharyngeal

51
Q

innervates touch and taste to the back of the tongue

A

CN IX glosspharyngeal

52
Q

innervates stylopharyngeous muscle

A

CN IX

53
Q

innervates parotid gland

A

CN IX

54
Q

sensory nerves of CN IX and CN X synapse in the […] nucleus

A

spinal nucleus or gustatory nucleus (pons)

55
Q

damage causes diminished gag reflex, hoarseness, difficulty swallowing

A

CN X vagus

56
Q

innervates most muscles of the larynx, pharynx, palate

A

CN X vagus

57
Q

gives parasympathetic innervation to viscera in thorax and abdomen

A

CN X vagus

58
Q

the motor neurons from CN X originate from the […] nucleus

A

nucleus ambiguus

59
Q

parasympathetic neurons from CNX originate from […] nucleus

A

dorsal motor

60
Q

sensory neurons from CNX synapse from […] nucleus

A

gustatory or spinal trigeminal

61
Q

sensory function: mostly visceral afferents and taste at base of tongue

A

CN X

62
Q

describe parasympathetic innervation of the ciliary muscle and pupillary constrictor via CN III

A

edinger-westphal nucleus –> CN III –> ciliary ganglion

63
Q

CN most likely to be injured due to head trauma

A

CN IV

64
Q

damage to CN IV affects the […] eye

A

ipsilateral

65
Q

damage to […] results in head tilt to opposite shoulder to align the two visual axes

A

CN IV trochlear

66
Q

damage to […] results in failure to abduct the affected eye

A

CN VI

67
Q

afferent limb of the gag reflex

A

CN IX

68
Q

efferent limb of the gag reflex

A

CN X

69
Q

damage to […] results in ipsilateral eye pointing down and out, likely with a blown pupil

A

CN III occulomotor

70
Q

because the facial motor neurons that innervate the forehead have bilateral corticobulbar innervation, strokes in the motor cortex will only affect the […] face

A

lower

71
Q

hallmark of a brainstem lesion

A

loss of sensation or paralysis on one side of the body accompanied by a cranial nerve loss

72
Q

provides both taste and touch information about the posterior 1/3 of the tongue

A

CN IX glossopharyngeal

73
Q

carries sensation to the anterior 2/3 of the tongue

A

CN V

74
Q

innervates the intrinsic muscles of the tongue

A

CN XII

75
Q

the olfactory nerves can be sheared off as they enter the […] as a result of head injury

A

cribriform plate

76
Q

CN associated with the midbrain [2]

A

oculomotor
trochlear

77
Q

CN associated with the pons [4]

A

trigeminal V
abducens VI
facial VII
auditory VIII

78
Q

CN associated with the medulla [4]

A

glossopharyngeal IX
vagus X
accessory XI
hypoglossal XII

BMB Test 2 (17 decks)

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