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809 - Exam 1 Block > CN 3 - Herring > Flashcards

CN 3 - Herring Flashcards

1
Q

the cavernous sinuses are located on either side of the

A

sella turcica

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2
Q

the cavernous sinuses are laterally bound by

A

dura mater

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3
Q

what is in the middle of the cavernous sinuses

A

CN VI
internal carotid artery (& postGS fibers of internal carotid plexus)

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4
Q

what is along the lateral wall of the cavernous sinuses

A

CN III
CN IV
CN V1
CN V2

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5
Q

The primary cranial
nerve for somatic sensory (pain, temperature,
proprioception, & touch) innervation from the head

A

CN V

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6
Q

Somatic motor to the
muscles of mastication & pharyngeal arch 1 muscles

A

CN V

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7
Q

For somatic sensory pathway of CN V, where are the 1st order cell bodies for touch, pain, and temp

A

trigeminal ganglion

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8
Q

For somatic sensory pathway of CN V, what are the 3 peripheral processes of CN V

A

CN V1: ophthalmic
CN V2: maxillary
CN V3: mandibular

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9
Q

For somatic sensory pathway of CN V, what are the central processes of CN V

A

trigeminal nerve (CN V)

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10
Q

For somatic sensory pathway of CN V, what are the 2 2nd order cell bodies the central processes project to

A

main/chief/principal nucleus

spinal trigeminal nucleus

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11
Q

For somatic sensory pathway of CN V, what is the main/chief/principal nucleus for

A

discriminative touch

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12
Q

For somatic sensory pathway of CN V, what is the spinal trigeminal nucleus for

A

pain and temperature

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13
Q

For somatic sensory pathway of CN V, 2nd order CBs send their axons to 3rd order CBs that are located where

A

VPM of thalamus

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14
Q

For somatic sensory pathway of CN V, 3rd order cell bodies project to the

A

inferolateral portion of the postcentral gyrus

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15
Q

For somatic sensory pathway of CN V, where are the 1st order CBs for proprioception

A

mesencephalic nucleus

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16
Q

For somatic motor pathway of CN V, where are the LMNs

A

trigeminal motor nucleus

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17
Q

For somatic motor pathway of CN V, what branch of CN V are the axons of LMNs located

A

CN V3

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18
Q

CN V1 gets sensory (pain, temp, touch) from

A

skin at & superior to the eyes

eyeball

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19
Q

CN V1 passes through the ________ from the orbit

A

superior orbital fissure

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20
Q

after the superior orbital fissure what does CN V1 pass through to reach trigeminal ganglion

A

cavernous sinus

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21
Q

Decreased (or abnormal) sensations of pain, temperature, & touch from
area of distribution is from a lesion of

A

CN V1, V2, V3

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22
Q

CN V2 gets sensory (pain, temp, touch) from

A

Skin between the mouth &
the eyes

Maxillary sinus

Nasal cavity

Palate

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23
Q

CN V2 passes through the

A

foramen rotundum

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24
Q

after the foramen rotundum, CN V2 passes through _________ to reach trigeminal ganglion

A

cavernous sinus

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25
Q

CN V3 gets sensory (pain, temp, touch) from

A

Skin along the region of the mandible

Anterior 2/3rd tongue

External ear

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26
Q

CN V3 gets somatic motor to

A

muscles of mastication and pharyngeal arch 1 muscles

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27
Q

CN V3 passes through __________ to reach trigeminal ganglion

A

foramen ovale

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28
Q

Deviation of mandible to side of the lesion during mouth opening is due to a lesion of

A

CN V3

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29
Q

Decreased (or abnormal) pain, temperature, touch sensation from the entire ipsilateral face (across the
forehead, cheek, & chin) is due to a lesion of

A

CN V

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30
Q

Lesion to one of the CN V divisions would only show a deficit along the

A

distribution of that division

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31
Q

Mandible deviates to the same side as the lesion when opening the mouth would be due to a lesion of

A

CN V

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32
Q

what are anesthetized for procedures involving the maxillary teeth & gingivae

A

CN V2 or branches of CN V2

33
Q

what are anesthetized for
procedures involving the mandibular teeth & gingivae

A

Branches of CN V3

34
Q

The primary cranial nerve for somatic motor innervation to the muscles of facial expression & pharyngeal arch 2 muscles

A

CN VII

35
Q

Preganglionic parasympathetic
fibers to all the major glands of the head except the parotid gland

A

CN VII

36
Q

Special sensory for taste from the anterior 2/3rd of the tongue

A

CN VII

37
Q

Somatic sensory from a small & variable area of the external ear

A

CN VII

38
Q

for the somatic motor pathway for CN VII, the axons project ________ only to the VENTRAL half of the facial motor nucleus. What does this affect?

A

contralaterally only ; muscles of the lower face (perioral)

39
Q

for the somatic motor pathway for CN VII, the axons project ________ only to the DORSAL half of the facial motor nucleus. What does this affect?

A

bilaterally ; muscles of the upper face (periorbital)

40
Q

for the somatic motor pathway for CN VII, where are the LMNs

A

facial motor nucleus

41
Q

for the somatic motor pathway for CN VII, the axons of LMNs exit the cranial cavity via ________ into the ________

A

internal acoustic meatus ; facial canal

42
Q

for the somatic motor pathway for CN VII, how do the axons of the LMNs exit the skull via

A

the stylomastoid foramen

43
Q

for the somatic motor pathway for CN VII, what are the 2 peripheral targets

A

muscle of facial expression & pharyngeal arch 2 including stapedius

44
Q

for the PS pathway for CN VII, where are the preGPS CBs

A

superior salivary nucleus

45
Q

for the PS pathway for CN VII, the facial nerve forms what 2 nerves

A

greater petrosal nerve
chorda tympani nerve

46
Q

for the PS pathway for CN VII, the postGPS CBs are where

A

pterygopalatine ganglion
submandibular ganglion

47
Q

for the PS pathway for CN VII, the postGPS fibers hitch a ride on branches of

A

CN V2 and CN V3

48
Q

for the PS pathway for CN VII, what are the peripheral targets (5 of them)

A

lacrimal, submandibular, sublingual, palatal, & nasal mucosal glands

49
Q

for the special sensory pathway for CN VII, where are the 1st order CBs

A

geniculate ganglion

50
Q

for the special sensory pathway for CN VII, the peripheral processes from palate and anterior 2/3rd tongue contribute to what 2 nerves

A

greater petrosal nerve
chorda tympani nerve

51
Q

for the special sensory pathway for CN VII, the 2nd order CBs are in the

A

solitary nucleus

52
Q

for the special sensory pathway for CN VII, the 3rd order neurons are in the

A

VPM of the thalamus

53
Q

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

A

insula (gustatory cortex)

54
Q

for taste. which CN/ganglion is associated with Anterior 2/3rd tongue & palate

A

CN VII (geniculate ganglion)

55
Q

for taste, which CN/ganglion is associated with posterior 1/3 tongue

A

inferior ganglion of CN IX

56
Q

for taste, which CN/ganglion is associated with the epiglottis

A

inferior ganglion of CN X

57
Q

for taste, where are the 2nd order CBs

A

solitary nucleus

58
Q

for taste, where are the 3rd order CBs and what do they project to

A

VPM of thalamus ; insula

59
Q

for the somatic sensory pathway for CN VII, the 1st order CBs are in the

A

geniculate ganglion

60
Q

for the somatic sensory pathway for CN VII, the 2nd order CBs are in the

A

spinal trigeminal nucleus

61
Q

for the somatic sensory pathway for CN VII, the 3rd order neurons are in the

A

VPM of the thalamus

62
Q

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

A

inferolateral postcentral gyrus

63
Q

Ipsilateral facial muscle paralysis is due to a lesion of CN

A

CN VII

64
Q

Noises may seem louder than usual is due to a lesion of CN

A

CN VII

65
Q

Ipsilateral dry eye is due to a lesion of CN

A

CN VII

66
Q

dry mouth and abnormal taste are variable symptoms of a lesion to which CN

A

CN VII

67
Q

Which CN is only composed of special sensory fibers for hearing & for balance

A

CN VIII

68
Q

For CN VIII, each have their own 1st order cell bodies and separate central pathway through the brain. What 2 nerves is this referring to?

A

cochlear nerve
vestibular nerve

69
Q

Vestibulocochlear nerve passes through the _______ of the temporal bone

A

internal acoustic meatus

70
Q

where are the 1st order CBs for the vestibular nerve

A

vestibular ganglion

71
Q

for the vestibular nerve, the 2nd order CBs are in the

A

vestibular nuclei of the brainstem

72
Q

which nerve is responsible for coordination of eye movements with head positioning

A

vestibular nerve

73
Q

which nerve is responsible for head, body, & limb posture

A

vestibular nerve

74
Q

where are the 1st order CBs in the cochlear nerve

A

cochlear (spiral) ganglion

75
Q

where are the 2nd order CBs in the cochlear nerve

A

cochlear nuclei of the brainstem

76
Q

which nerve is responsible for ultimately most of the auditory pathway that projects to the auditory cortex (temporal lobe)

A

cochlear nerve

77
Q

issues with balance or vertigo is due to a lesion of which nerve

A

vestibular nerve

78
Q

deafness (complete or partial) is due to a lesion of which nerve

A

cochlear nerve

809 - Exam 1 Block (19 decks)

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