CN 2 - Herring Flashcards

1
Q

Supplies somatic sensory from the posterior 1/3rd of the tongue & middle ear

A

CN IX

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2
Q

Supplies taste from posterior 1/3rd of the
tongue

A

CN IX

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3
Q

nerve that causes ear infection pain

A

CN IX

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4
Q

Supplies somatic motor innervation to 1 pharyngeal muscle

A

CN IX

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5
Q

PreGPS to the parotid gland

A

CN IX

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6
Q

Supplies visceral sensory (reflex) from the carotid body & sinus and oropharynx

A

CN IX

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7
Q

where are the lower motor neurons located in the somatic motor pathway for CN IX

A

nucleus ambiguous

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8
Q

what is the peripheral target for the CN IX in the somatic motor pathway

A

stylopharyngeus muscle

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9
Q

where are the preGPS cell bodies located in the PS pathway for CN IX

A

inferior salivary nucleus

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10
Q

what 2 structures do the preGPS fibers form in the PS pathway for IX

A

tympanic plexus
lesser petrosal n

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11
Q

where are the postGPS CBs located in the PS pathway for CN IX

A

Otic ganglion

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12
Q

the postGPS fibers hitch a ride on what CN in the PS pathway of CN IX

A

CN V3

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13
Q

what is the peripheral target of the PS pathway of CN IX

A

parotid gland

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14
Q

the 1st order neurons in the inferior ganglion of CN IX for the somatic sensory pathway of CN IX contribute to what

A

posterior 1/3 of tongue

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15
Q

the 1st order neurons in the superior ganglion of CN IX for the somatic sensory pathway of CN IX contribute to what

A

middle ear & inner aspect of tympanic membrane

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16
Q

In the somatic sensory pathway for CN IX, the central processes from ganglia project to 2nd order cell bodies in the

A

spinal trigeminal nucleus

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17
Q

In the somatic sensory pathway for CN IX, 2nd order CBs send their axons to 3rd order neurons in the

A

VPM of the thalamus

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18
Q

In the somatic sensory pathway for CN IX, 3rd order neurons send their axons to the

A

inferolateral postcentral gyrus

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19
Q

In the visceral sensory pathway for CN IX, the 1st order CBs in the inferior ganglion of CN IX contribute to what 3 things

A

carotid body
carotid sinus
oropharynx

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20
Q

In the visceral sensory pathway for CN IX, the central processes from ganglia project to 2nd order CBs in the

A

solitary nucleus

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21
Q

In the visceral sensory pathway for CN IX, the 2nd order CBs primarily projects fibers through ______ pathways

A

reflex

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22
Q

In the special sensory pathway for CN IX, the 1st order CBs in the inferior ganglion of CN IX have peripheral process that travel from ________ to inferior ganglion of CN IX

A

posterior 1/3 tongue

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23
Q

In the special sensory pathway for CN IX, central process from the inferior ganglion of CN IX project to 2nd order CBs in the

A

solitary nucleus

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24
Q

In the special sensory pathway for CN IX, 2nd order CBs send their axons to 3rd order neurons in the

A

VMP of the thalamus

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25
Q

In the special sensory pathway for CN IX, 3rd order neurons send their axons to the

A

Insula (gustatory cortex)

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26
Q

decreased gag reflex is due to a lesion of CN

A

IX

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27
Q

decreased pain, temperature, and touch form the posterior 1/3 of the tongue is due to a lesion to CN

A

IX

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28
Q

variable presentation of abnormal taste is due to a lesion of CN

A

IX

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29
Q

PreGPS to the thoracic & abdominal viscera (up
to the left colic flexure)

A

CN X

30
Q

Supplies visceral sensory (reflex) from the larynx, pharynx, thorax, & abdomen

A

CN X

31
Q

Supplies somatic motor innervation to the muscles of the larynx, most of the palatal muscles, & most of the pharyngeal muscles

A

CN X

32
Q

Supplies somatic sensory to portions of the external ear & tympanic membrane

A

CN X

33
Q

Supplies taste from the epiglottis

A

CN X

34
Q

In the PS pathway for CN X, the preGPS CBs are in the

A

DVMN

35
Q

In the PS pathway for CN X, the preGPS fibers send their axons to CN

A

CN X

36
Q

In the PS pathway for CN X, the postGPS CBs live in the

A

wall of the target organ

37
Q

In the PS pathway for CN X, the postGPS fibers live in the

A

wall of the target organ

38
Q

In the PS pathway for CN X, the peripheral targets are the

A

thoracic & abdominal viscera (up to the left colic flexure)

39
Q

In the visceral sensory pathway for CN X, the 1st order CBs are in the inferior (nodose) ganglion of CN X which contribute to what 4 things

A

laryngopharynx
larynx
thorax
abdomen

40
Q

In the visceral sensory pathway for CN X, central processes from ganglia project to 2nd order CBs in the

A

solitary nucleus

41
Q

In the visceral sensory pathway for CN X, the 2nd order CBs in the solitary nucleus primarily protect fibers through ______ pathways

A

reflex

42
Q

In the somatic motor pathway for CN X, where are the lower motor neurons located

A

nucleus ambiguous

43
Q

In the visceral sensory pathway for CN X, axons of LMNs pass through what into the neck

A

jugular foramen

44
Q

In the visceral sensory pathway for CN X, what are the peripheral targets

A

Pharyngeal MM. (except for stylopharyngeus M)

Laryngeal MM.

Most Palatal MM.

45
Q

In the somatic sensory pathway for CN X, the 1st order CBs in the superior ganglion contribute to what 2 things

A

external ear

tympanic membrane

46
Q

In the somatic sensory pathway for CN X, central processes from ganglia project to 2nd order CBs in the

A

spinal trigeminal nucleus

47
Q

In the somatic sensory pathway for CN X, 2nd order CBs send their axons to 3rd order neurons in the

A

VPM of the thalamus

48
Q

In the somatic sensory pathway for CN X, 3rd order neurons send their axons to the

A

inferolateral postcentral gyrus

49
Q

In the special sensory for taste pathway for CN X, 1st order CBs are where

A

inferior (nodose) ganglion of CN X

50
Q

In the special sensory pathway for CN X, peripheral processes of 1st order CBs travel from the ______ to inferior ganglion of CN X

A

epiglottis

51
Q

In the special sensory pathway for CN X, central processes project to 2nd order CBs in the

A

solitary nucleus

52
Q

In the special sensory pathway for CN X, 2nd order CBs send their axons to 3rd order neurons in the

A

VPM of the thalamus

53
Q

In the special sensory pathway for CN X, 3rd order neurons send their axons to the

A

insula (gustatory cortex)

54
Q

sagging of soft palate on ipsilateral side is due a lesion from CN

A

X

55
Q

uvula deviated to normal (contralateral) side can be due to a lesion of CN

A

X

56
Q

hoarseness can be due to a lesion of CN

A

X

57
Q

which CNs can contribute to dysphagia (difficulty swallowing)

A

V, VII, IX, X, or XII

58
Q

In the somatic motor pathway for CN XI, axons project

A

bilaterally

59
Q

In the somatic motor pathway for CN XI, LMNs are where

A

accessory nucleus (ventral horn of the upper 5 cervical levels)

60
Q

In the somatic motor pathway for CN XI, axons of LMNs enter the cranial cavity via

A

foramen magnum

61
Q

In the somatic motor pathway for CN XI, axons of LMNs exit the cranial cavity via

A

jugular foramen

62
Q

In the somatic motor pathway for CN XI, what are the peripheral targets

A

trapezius
SCM

63
Q

Weakness of shoulder elevation on ipsilateral side is due to a lesion of CN

A

XI

64
Q

Weakness turning chin to opposite side is due to a lesion of CN

A

XI

65
Q

In the somatic motor pathway for CN XII, UMNs project

A

contralaterally ONLY

66
Q

In the somatic motor pathway for CN XII, LMNs are in the

A

hypoglossal nucleus

67
Q

In the somatic motor pathway for CN XII, axons of LMNs pass through the ________ canal

A

hypoglossal

68
Q

In the somatic motor pathway for CN XII, what are the peripheral targets

A

All intrinsic &
extrinsic muscles of the tongue EXCEPT palatoglossus muscle

69
Q

Tongue projects to
contralateral side of lesion is due to a lesion of the _______ of CN

A

UMN of CN XII

70
Q

Tongue projects to ipsilateral side of lesion due to a lesion of the _______ of CN

A

LMN of CN XII

71
Q

atrophy of tongue over time is due to lesion of CN

A

XII