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PNS Ex 1 > 1 > Flashcards

1 Flashcards

1
Q

Muscles supplied by the superior Ramus?

A

Superior rectus, Levator palpebrea superioris

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2
Q

C.N. III is _________only?

A

Motor

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3
Q

What are the 3 nucleus of termination for CN V?

A

Main sensory, spinal, mesencephalic.

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4
Q

What would involve inability to constrict the pupil as well as loss of light reflexes?

A

Internal opthalmplegia

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5
Q

What type of CN paralysis is most common>?

A

Abducens

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6
Q

What does CN VI supply?

A

Motor to the lateral rectus

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7
Q

What are the 4 branches of the opthalmic division ?>

A

Meningeal, lacrimal, frontal, nasocillary.

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8
Q

Cell bodies to main and spinal nuclei have cell bodies located where?

A

Trigeminal Ganglion

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9
Q

What nerve is the only to leave off the facial nerve inside the facial canal

A

Nerve to stepidus

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10
Q

The facial nerve carries what kind of fibers?

A

Both motor and sensory, it’s a mixed nerve.

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11
Q

Where is the appart origin of the facial nerve

A

Medulopontoine n

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12
Q

What kind of neurons cross over?

A

Secondary

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13
Q

Spinal nerves are attached to the cord via what?

A

Anterior and posterior ROOTLETS

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14
Q

Where are the oculomotor nuclei located?

A

Periaquicutal grey matter, anterior to the cerebral aqueduct, at the level of the superior colliculus

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15
Q

The motor nucleus of the facial nerve recipes info from where?

A

Both hemispheres

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16
Q

What supplies Burma mater lining the middle cranial fossa?

A

Meningeal nerve

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17
Q

C.N. III exits the skull via what opening?

A

Superior orbital fissure

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18
Q

The greater petrosal nerve renters the cranial vault via what?

A

Foramen lacerum

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19
Q

Where are cell bodies of the sensory neurons of CN VII found?

A

The geniculate ganglion

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20
Q

Ptosis is due to a weakness if what muscle or a lesion to what nerve?

A

Levator palpebrae superiorism, oculomotor nerve

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21
Q

Both roots of CN VII travel together and enter what?

A

Internal acoustic meatus

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22
Q

Fibers from the lacrimal nerve originated from where?

A

Pterygopalatine ganglion

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23
Q

What nucleus contributes pre para fibers to the facial nerve

A

Superior salivary nucleus

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24
Q

Where does CN VI exit into>?

A

Pointing cistern

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25
Q

Where is the geniculate ganglion located>?

A

External genuine of the facial nerve

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26
Q

Does the trochlear nerve travel anterior or posterior before is exits?

A

Anterior

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27
Q

What is the apparent origin of CN IV?

A

TROCHLEAR NUCLEUS

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28
Q

What branches help supply the orbicularis oculi

A

Zygomatic

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29
Q

What is the once nucleus of origin for CN V>?

A

Trigeminal motor nuc

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30
Q

What nerve supplies the eyeball

A

Long ciliary nerve

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31
Q

Cranial nerve VI travels along what sinus?

A

Cavernous

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32
Q

Is Bell’s palsy unilateral or bilateral

A

Unilateral

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33
Q

Lower motor neurons synapse where?

A

Rexed lamina IX

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34
Q

How does the trochlear nerve exit the cranial vault?

A

Superior orbital fissure

35
Q

What is the target site for visceral (autonomic) functions ?

A

Smooth, glandular tissue, cardiac.

36
Q

The opthalmic is ________ function only?

A

Sensory

37
Q

What is the apparent origin of CN I. ?

A

Interpeduncular cistern

38
Q

Secondary sensory neurons decussate and convey info to where?

A

Thalamus (after crossing over)

39
Q

What is the origin of CN VI,

A

Medulopontine sulcus

40
Q

What is the clinical name for a droopy eyelid?>

A

Ptosis

41
Q

The opthalmic division enters the orbit via what?

A

S.O.F.

42
Q

When the roots of the facial nerve combine to form a single trunk where does it enter

A

Facial canal

43
Q

What is the smallest branch of the opthalmic division ?

A

Lacrimal

44
Q

What supplies the platysma

A

Cervical branch

45
Q

What is it called when the parotid gland is removed

A

Superficial parotidectomy

46
Q

Internuclear opthalmpplegia involves damage to what?

A

MEDIAL longitudinal fasciulus

47
Q

What is the largest CN>

A

Trigeminal

48
Q

Post para fibers of CN III pierce the sclera and travel along the internal surface of the sclera to supply?

A

The ciliaris and pupillary constrictors

49
Q

What is the largest branch of the opthalmic division?

A

Frontal

50
Q

What is the clinical word for double vision?

A

Diplopia

51
Q

The chorda tympani combines with what never

A

Lingual

52
Q

CN IV communicates with what plexus?

A

Cavernous

53
Q

What contains primary sensory nuron cell bodies?

A

Dorsal root ganglion

54
Q

What is the origin of CN IV

A

Posterior brain stem

55
Q

Where do sensory fibers carried in the facial nerve terminate?

A

Upper part of the solitary nucleus

56
Q

Where do both the trochlear and abducens never receive information from?

A

Bdmn area 8, superior colliculus and medial longitudinal colliculus

57
Q

Axons from the accessory oculomotor nucleus synapse where?

A

Ciliary ganglion

58
Q

What branch of CN V is the only to Cary motor fibers?

A

Mandibular

59
Q

Where is the trigeminal ganglion found?

A

Trigeminal cave

60
Q

Fibers from the superior salivary nucleus synapse where?>

A

Pterygopalatine or submandibular ganglion

61
Q

What branch supplies the posterior belly of the digastric

A

Digastric branch

62
Q

Where is the appart origin of CN V

A

Lateral aspect of the pons

63
Q

What are possible causes for oculomotor paralysis ?>

A

Uncal herniations, diabetes, PCA aneurysms

64
Q

Where is the trochlear nucleus located

A

Periaqueductal grey, caudal to the oculomotor nucleus.

65
Q

What cranial nerves fibers cross as the exit?

A

CN IV

66
Q

The chords tympani leaves the temporal bone via what

A

Ptertgotympanic fissure.

67
Q

What is the clinical name for crossing of the eyes either internally or externally?

A

Strabismus

68
Q

Hows does CN VI exit the skull>

A

Sup orbital fissure

69
Q

What carries sensory info to the sphenoidal and ethmoidal sinuses

A

Posterior ethmoid nerve.

70
Q

Muscles On the inferior part of the receives info only from ?

A

The contralateral cortex

71
Q

What type of CN paralysis is the rarest?

A

Trochlear

72
Q

What is the nucleus of origin for CN VI and where is it located?

A

Abducens nucleus, floor of the rhomboid fossa.

73
Q

For CN V were are the cell bodies of primary sensory neurons located?

A

Trigeminal ganglion

74
Q

What neurons release norepinephrine?

A

Postganglionic sympathetic

75
Q

Muscles supplied by the inferior Ramus include?

A

Medial branch- medial rectus
Central branch- interior rectus
Lateral branch- inferior oblique

76
Q

What Is the nucleus of origin for CN VII

A

Motor nucleus of the facial nerve

77
Q

What is another name for the petrosal nerve

A

Superficial petrosal nerve

78
Q

What is the target site for somatic information?

A

Skeletal muscle

79
Q

Is diplopia objective or subjective??>

A

Subjective

80
Q

What is the SMALLEST cranial nerve?

A

CN IV

81
Q

How many neurons does it take to convey somatic sensory input from the trunk to the extremities?

A

3 (to spinal cord, posterior fibers to M.O.

82
Q

Dendrites pass through the tri germinal ganglion to ascend to where?

A

Mesencephalic nucleus

83
Q

What does CN IV supply ?

A

Superior oblique

84
Q

Where are the only PRIMARY sensory neurons cell bodies located in the CNS

A

Mesencephalic nucleus

PNS Ex 1 (1 decks)

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