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Cranial nerves Flashcards

1
Q

above pons

A

1,2,3,4

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2
Q

pons

A

5,6,7,8

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3
Q

medulla

A

9,10,11,12

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4
Q

sensory nerves

A

olfactory, optic, vestibulocochlear

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5
Q

motor nerves

A

oculomotor, trochlear, abducent, accessory, hypoglossal

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6
Q

mixed nerves

A

trigeminal, facial, glossopharyngeal, vagus

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7
Q

CN 1 function

A

smell

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8
Q

CN 2 function

A

vision

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9
Q

CN 3 function

A

moves eye up/down/medially, raises eyelid, constricts pupil, adjusts lens

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10
Q

CN 4 function

A

moves eye medially and down

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11
Q

CN 5 function

A

facial sensation, chewing, sensation form temporomandibular joint

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12
Q

CN 6 function

A

abducts eye

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13
Q

CN 7 function

A

facial expression, closes eye tears, salivation, taste

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14
Q

CN 8 function

A

sensation of head position and movement, hearing

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15
Q

CN 9 function

A

Swallowing, salivation, taste

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16
Q

CN 10 function

A

regulates, viscera, swallowing, speech, taste

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17
Q

CN 11 function

A

elevates shoulders, turns head

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18
Q

CN 12 function

A

moves tongue

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19
Q

major motor tracts

A

cortiospinal, corticobulbar

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20
Q

supplementary. motor nuclei

A

red, sustantia nigra, pontine nuclei, inferior olive

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21
Q

major sensory

A

medial lemniscus, spinothalamic, trigeminathalamic

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22
Q

neurobehavioral cells

A

periauiductal gray, raphe nuclei, locus coeruleus

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23
Q

somatic motor function

A

extraocular muscles, intrinsic tongue

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24
Q

somatic motor nuclei

A

oculomotor, trochlear, abducens, hypoglossal

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25
Q

Brachial motor funcitons

A

mastications, facial expression, middle ear, pharynx, larynx, SCM, trapezius

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26
Q

brachial motor nuclei

A

motor of CN5, facial, nucleus ambiguus, accessory spinal

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27
Q

parasympathetic function

A

head and thoracoabdominal viscera

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28
Q

parasympathetic nuclei

A

edinger-westphal, superior salivatory, inferior salivatory, dorsal motor nucleus

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29
Q

general somatic sensory function

A

touch, pain, temp, position, vibration

30
Q

general somatic sensory nucleus

A

trigeminal

31
Q

special somatic sensory function

A

olfaction vision, hearing, bestibular

32
Q

special somatic sensory nucleus

A

cochlear, vestibular

33
Q

special visceral sensory function

34
Q

special visceral sensory nucleus

A

nucleus solitarius

35
Q

general visceral sensory function

A

cardio-respiratory, digestion

36
Q

general visceral sensory nucleus

A

nucleus solitarius

37
Q

mid brain contains

A

red nucleus, cerebral peduncle, substantia nigra, cerebral aqueduct, periaqueductal gray, colliculi

38
Q

pons contains

A

fourth ventricle, motor fibers, superior and middle cerebellar peduncles, pontocerebellar fibers, cerebellum

39
Q

medulla contains

A

fourth ventricle, inferior olivary nucleus, medullary pyramid, medial lemniscus, solitary tract and nucleus

40
Q

Pontine syndromes occur at _ level

A

caudal pons

41
Q

left abducens abnormality

A

left esotropia, paralysis of abduction

42
Q

left ascending root abnormality

A

paralysis of left face

43
Q

left trigeminothalamic tract abnormality

A

loss of pinprick on right

44
Q

left paramedian pontine reticular formation abnormality

A

paralysis of gaze to the left

45
Q

left corticospinal abnormality

A

weakness in the right limbs, exaggerated tendon reflexes and extensor plantar response

46
Q

left medial lemniscus abnormality

A

loss of 2 point, vibrations, proprioception

47
Q

lateral medullary (wallenberg) syndromes occur at _ level

A

rostral medulla

48
Q

left spinal trigeminal tract abnormality

A

decreased pinprick in left

49
Q

left inferior cerebellar peduncle abnormality

A

ataxia, dysmetria in left

50
Q

left spinothalamic tract abnormality

A

decreased pinprick

51
Q

medial midbrain (weber) syndrome occurs at _ level

A

rostral midbrain ( superior colliculus)

52
Q

right oculomotor nerve abnormality

A

right ptosis, right eye down and out and right dilated

53
Q

right coricospinal tract abnormality

A

weakness in the left limbs, increased muscle tone, and babinski response

54
Q

right corticobulbar tract abnormality

A

paralysis of left face

55
Q

facial colliculus syndrome

A

diplopia, left facial droopiing, esotropia,

56
Q

facial colliculus syndrome can be caused by

A

CNS lymphoma

57
Q

olfactory nerve exits the skull through

A

the cribriform plate of ethmoid

58
Q

CN 3 palsy presents

A

complete right ptosis

59
Q

corneal reflex occurs upon stimulation of

A

corneal receptors

60
Q

lesions to CN9 can result in

A

difficulty swallowing, deviation of uvula, lack of gag reflex, lack of taste, dysfunction parotid secretion

61
Q

vestibular schwannoma is a tumor of cranial nerve _

62
Q

which nerve uses the same foramen as CN 8

63
Q

petrous bone fractures put _ at risk

64
Q

lesions of geniculate ganglion result in

A

paralysis or facial expression, hyperacusis, gustatory impairment, diminished tears, reduced nasal and salivary secretion

65
Q

lesion near nerve to stapedius can affect the

A

chorda tympani fibers

66
Q

cranial nerves in the middle cranial foss

A

CN 6,5,4,3,

67
Q

Cavernous sinus thrombosis may affect which cranial nerves

A

6, 5, 4, 3

68
Q

rule of 4 location

A

4 above pons, 4 at pons, 4 at medulla

69
Q

CN factor of 12 are

70
Q

CN not factor of 12 are

71
Q

4 midline columns

A

motor nucleus, motor pathway, MLF, Medial lemniscus

72
Q

4 side columns

A

sympathetic, spinothalamic, sensory, spinocerebellar

block 6 (6 decks)

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