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Neuroanatomy > Cranial Nerves > Flashcards

Cranial Nerves Flashcards

1
Q

Cr N I

A

Olfactory

Smell sensory

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2
Q

Cr N II

A

Optic

Vision sensory

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3
Q

Cr N III

A

Occulomotor
Motor to eyeball muscles
Parasympathetic to eye

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4
Q

Cr N IV

A

Trochlear

Motor to eyeball muscles

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5
Q

Cr N VI

A

Abducens

Motor to eyeball

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6
Q

Cr N V

A

Trigeminal
Sensory to face
Motor to jaws

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7
Q

Cr N VII

A 
Facial
Motor to face
Sensory to ear canal
Parasympathetic to glands
Taste sensation
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8
Q

Cr N VIII

A

Vestibulocochlear
Hearing - cochlea
Balance - labyrinth
Sensory

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9
Q

Cr N IX

A

Glossopharyngeal
Motor/sensory to pharynx
Parasympathetic to glands
Taste sensation

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10
Q

Cr N X

A

Vagus
Motor/sensory/parasympathetic to
Pharynx, larynx, heart, abdomen

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11
Q

Cr N xi

A

Accessory

Motor to shoulder

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12
Q

Cr N xii

A

Hypoglossal

Motor to tongue

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13
Q

Mid/hind brain

Nerve arrangement from medial to lateral

A
  • somatic motor (GSM)
  • pharyngeal motor (SVM)
  • Parasympathetic motor (GVM)
  • visceral sensation (GVS)
  • special senses (SSS,SVS)
  • skin and proprioception (GSS)
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14
Q

Edinger Westphal nucleus

A

Cr nerve 3
Mesencephalon
GVM

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15
Q

N.I exits cranium via

A

Cribriform plate of mesethmoid bone

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16
Q

Cr nerve VIII exits cranium via

A

Internal auditory meatus

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17
Q

Cranial nerve for pharyngeal arch 1

A

5 (3)

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18
Q

Cranial nerve for pharyngeal arch 2

A

7

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19
Q

Cranial nerve for pharyngeal arch 3

A

9

20
Q

Cranial nerve for pharyngeal arch 4, 5, 6

A

10

21
Q

Cranial nerve for pharyngeal arch 7

A

11

22
Q

What passes through the Infraorbital canal?

A

n.V2

Infra orbital artery

23
Q

What passes through the stylomastoid foramen?

A

N.VII

24
Q

What passes through foramen magnum?

A

Spinal cord
N.XI
Basilar a
V

25
Q

What passes through hypoglossal foramen/canal?

A

N.XII

26
Q

What passes through jugular foramen = petrobasilar fissure = tympano-occipital fissure?

A

Nn. IX, X, XI

Int.carotid a

27
Q

What passes through the oval foramen?

A

N.V3

Middle meningeal a

28
Q

What passes through orbital fissure?

A

Nn. III, IV, VI, V1

Anastomotic a + v

29
Q

What passes through optic canal?

A

N. II

30
Q

What passes through rostral/caudal alar foramina, round foramen?

A

Nn.V2 V1
Lacrimal
Maxillary a

31
Q

Foramen - Unified in ruminants

A

Foramen orbito-rotundum

=orbital fissure + rostral/caudal/round foramina

32
Q

Foramen unified in horses

A

Foramen lacerum

= jugular foramen + oval foramen

33
Q

Caudal branch of XII

A

Ansa hypoglossi

Joins with C1 forming sterno-thyro-hyoids

34
Q

Branches of nVII

A

Stylomastoid foramen

  • greater superficial petrosal
  • strapedial
  • chorda tympani
  • internal auricular
  • digastricus
  • stylohyoideus
  • cervical
  • ventral buccal
  • caudal auricular
  • auriculo-palpebral
  • dorsal buccal
35
Q

Taste buds recognise

A 
Saltiness
Sweet
Bitter
Sour
Glutamate
Water
36
Q

Placodes

A

Ectodermal thickenings

With the CNS - form special sense organs

37
Q

If neuron cell body is in CNS, it formed from…

A

Neural tube

Motor

38
Q

If cell body is outside CNS, neuron formed from

A

Neural crest cell

Placode

39
Q

Myotome motor nerves

GSM

A

III
IV
VI
XII

40
Q

Which nerves innervated myotome 1-3?

A

III, IV, VI

eye

41
Q

What innervated myotome 5-8?

A

XII
via hypoglossal foramen
Muscles of tongue and geniohyoideus

42
Q

Pharyngeal motor nerves

A

Innervate pharyngeal arches

V - first pharyngeal arch muscles, jaw

43
Q

Jaw muscles

A 
Masseter
Temporalis
Pterygoids
Rostral digastricus
Mylohyoideus
Tensors platini and tympani
44
Q

Accessory picks up roots from…

A

C3, 4, 5 (or 1-6…?)

Then splits to dorsal and ventral

45
Q

Visceral motor nerves

GVM

A

III
VII
IX
X

46
Q

Visceral sensory nerves

GVS

A

IX

X

47
Q

Roots of trigeminal nerve

A

V1 - sensor ophthalmic, profoundus (orbital fissure)
V2 - sensory, maxillary branch (round foramen)
V3 - mixed mandibular branch + 1st pharyngeal arch (oval foramen)

Neuroanatomy (4 decks)

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