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Jason's Neuro Block > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q 
Olfactory
Number:
Type of fibre:
Structure innervated:
Function
Nuclei location:
foramen:
ganglia:
Nuclei:
A

I

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2
Q

Which Cranial Nerves are pure sensory?

A

I (olfactory)
II (optic)
VIII (vestibulocochlear)

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3
Q

Which Cranial Nerves are pure motor?

A 
III (occulomotor)
IV (trochlear)
VI (abducens)
XI (accessory)
XII (hypoglossal)
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4
Q

Which Cranial Nerves are mixed?

A

V (Trigeminal)
VII (Facial)
IX (glossopharyngeal)
X (vagus)

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5
Q

Which Cranial Nerves have no nuclei?

A

I

II

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6
Q

3 Motor Cranial Nerve Columns?

A

somatic motor
Branchial
Visceral (Autonomic)

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7
Q

Cranial Nerve Nuclei in the somatic motor column? which part of the brainstem?

A

II (midbrain) olfactory
IV (Midbrain) trochlear
VI (Pons) Abducens
XII (medulla) Hypoglossal

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8
Q

Cranial Nerve Nuclei in the branchial? which part of brainstem?

A

V (V3 mandibular) Pons
VII: (Facial) Pons
IX: (Medulla)
X: (Medulla)

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9
Q

What is the nucleus ambiguous? where is it?

A

Nuclei for branchial IX, X in the medulla behind the inferior olive

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10
Q

Cranial Nerve Nuclei IX, X in the nucleus ambiguous innervates what?

A

IX: stylopharyngeus
X: levator palati

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11
Q

Visceral efferents of Cranial Nerve Nuclei motor: which ones? where in brainstem?

A

III (midbrain) (Edinger-Westfall)
VII (Facial) (Pons) (superior salivatory)
IX (Medulla, Pons, inferior salivatory)
X (Medulla, dorsal motor nucleus of vagus)

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12
Q

Cranial Nerve Nuclei II is in which part of brainstem and which motor column?

A

somatic motor column

midbrain

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13
Q

Cranial Nerve Nuclei XII is in which part of brainstem and which column?

A

somatic motor column

medulla

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14
Q

Cranial Nerve Nuclei X is in which part of brainstem and which motor column?

A

Branchial (medulla)

Autonomic (medulla)

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15
Q

Cranial Nerve Nuclei V is in which part of brainstem and which motor column?

A

V3 Pons

branchial

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16
Q

Cranial Nerve Nuclei VII is in which part of brainstem and which motor column?

A

Branchial

Pons

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17
Q

What are the 3 sensory Cranial Nerve Nuclei columns?

A

Laterally located

  1. Visceral
  2. somatic
  3. special
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18
Q

Nucleus solitarius is where and what Cranial Nerve Nuclei are in it?

A

visceral afferent column
taste: VII, IX, X
Autonomic: IX, X

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19
Q

What is in the rostral part of nucleus solitarius?

A

gustatory nucleus (VII, IX, X)

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20
Q

What is in the caudal part of nucleus solitarius?

A

Visceral sensory

IX, X

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21
Q

Cranial Nerve Nuclei for somatic sensory are? where in brainstem?

A 
Face
V (Trigeminal) (Midbrain/Pons)
skin behind ear and ext. auditory meatus
VII (pons)
IX (pons)
X (medulla)
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22
Q

Cranial Nerve Nuclei for special sensory are? where in brainstem?

A

I (CNS)
II (CNS)
VIII Pons/medulla

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23
Q

Nucleus ambiguous: which nuclei? which column?

A

Branchial
IX
X

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24
Q

Nucleus solitarius: which nuclei? which column?

A

visceral afferents
VII
IX
X

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25
Q

Visceral sensory division of nucleus solitarius is found where?

A

Caudal Medulla

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26
Q

gustatory nucleus of nucleus solitarius is found where?

A

rostral medulla

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27
Q

Olfactory does what? exits?

A

smell

cribiform plate

28
Q

optic: what kind of nerve? exit?

A

special sensory

optic canal

29
Q

Cranial Nerve III, IV, VI exit where?

A

superior orbital fissure

30
Q

Cranial Nerve IV innervates what?

A

Trochlear

superior oblique

31
Q

Cranial Nerve VI innervates what?

A

Abducens

lateral rectus

32
Q

CN III innervates?

A

4 muscles that aren’t superior oblique/lateral rectus

superior rectus
inferior rectus
medial rectus
inferior oblique

33
Q

what kind of nerve is CN III

A 
somatic motor
visceral motor (parasympathetic)
34
Q

besides moving extraocular muscles, what else does CN III do somatic motor?

A

elevates eyelid

35
Q

Superior oblique of eye innervated by?

A

IV Trochlear

36
Q

Lateral rectus of eye innervated by?

A

VI Abducens

37
Q

What parasympathetic/visceral efferent does CNIII do?

A 
Iris (pupils)
Ciliary muscle (focussing)
38
Q

What Cranial Nerves are in the superior orbital fissure?

A

III
IV
VI
V1

39
Q

What Cranial Nerves exits the internal auditory meatus?

A

VII

VIII

40
Q

What Cranial Nerves exits jugular foramen?

A

IX
X
XI

41
Q

What part of brain stem does pupillary light reflex test? How?

A

Midbrain
Sensory: II
Motor: III (edinger westphal)

42
Q

Trigeminal nerve is what kind of nerve? which columns nuclei?

A

somatic sensory

branchial motor

43
Q

3 things the trigeminal does:

A

sensory: face(mouth)
motor chew
tensor tempani

44
Q

4 trigeminal nuclei are? for what?

A

Mesenphalic (proprioception)
Chief sensory (face, head)
Spinal trigeminal nucleus (pain)
motor nucleus (chew)

45
Q

what makes up the trigeminal ganglion?

A

sensory roots only

46
Q

path of motor trigeminal?

A

travels with mandibular V3
chewing
tensor tympani

47
Q

Corneal blink reflex tests what? via which pathways?

A

pons
CNV1 opthalmic
CNVII Facial obicularis oculi

48
Q

Facial nerve nuclei is part of 4 columns:

A

Branchial
visceral motor
visceral sensory (taste)
somatic sensory

49
Q

3 motor functions of facial nerve?

A
  1. facial expression
  2. stapedius muscle
  3. digastric muscle
50
Q

which CN for tensor tympani? which for stapedius?

A

Trigeminal tympani

seventh (facial) stapedius

51
Q

Which column does facial nerve proper come from?

A

branchial motor

52
Q

Nervous intermedius is part of which CN? functions? (3)

A

facial: VII
Parasympathetic
taste
sensation

53
Q

5 branches of facial?

A 
temporal
zygomatic
buccal
marginal mandibular
cervical
54
Q

CNVII is for what?

A

hearing/balance

55
Q

CNVII nuclei where? how many?

A

dorsal/ventral cochlear

4 vestibular

56
Q

CN VIII exits where? with what?

A

internal acoustic meatus

with facial nerve

57
Q

what innervates the parotid?

A

glossopharyngeal CN IX

58
Q

glossopharyngeal innervates what sensory in the mouth?

A
  1. post 1/3 tongue, parynx, middle ear, carotid body

2. Taste: post 1/3

59
Q

where does CN IX exit skull?

A

jugular foramen

60
Q

CNX main role?

A

autonomic regulation of viscera

61
Q

gag reflex tests? via which nerves

A

medulla

sensory: IX
motor: X

62
Q

where is the spinal accessory nuclei?

A

upper 506 cervical spinal cord

63
Q

CNXI pathway? innervates which main muscles?

A
  1. into foramen magnum, travels with vagus and exits jugular foramen
  2. innervates sternocleidomastoid and trapzius
64
Q

XII innervates what?

A

somatic motor to all muscles of tongue

65
Q

XII exits?

A

hypoglossal canal

Jason's Neuro Block (54 decks)

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