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Neuroscience > Cranial Nerves and Nuclei > Flashcards

Cranial Nerves and Nuclei Flashcards

1
Q

What nerves have SSA function?

A

CN II

CN VIII

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2
Q

What nerves have SVA function?

A

CN I
CN VII
CN IX
CN X

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3
Q

What nerves have GSE function?

A

CN III
CN IV
CN VI
CN XII

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4
Q

What nerves have GVE function?

A

CN III
CN VII
CN IX
CN X

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5
Q

What nerves have SVE function?

A 
CN V
CN VII
CN IX
CN X
CN XI
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6
Q

What nerves have GVA function?

A

CN VII
CN IX
CN X

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7
Q

What nerves come off the midbrain?

A

CN III

CN IV

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8
Q

What nerves come off the pons?

A

CN V
CN VI
CN VII
CN VIII

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9
Q

What nerves come off the medulla?

A

CN IX
CN X
CN XI
CN XII

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10
Q

What motor nuclei are located in the midbrain?

A

Edinger-Westphal Nucleus
Occulomotor Nucleus
Trochlear Nucleus

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11
Q

What motor nuclei are located in the pons?

A

Motor Nucleus of V
Abducens Nucleus
Superior Salivatory Nucleus
Facial Nucleus

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12
Q

What motor nuclei are located in the medulla?

A

Inferior Salivatory Nucleus
Dorsal Motor Nucleus of X
Nucleus Ambiguous
Hypoglossal Nucleus

Spinal Accessory Nucleus - in spinal cord

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13
Q

What sensory nuclei are located in the midbrain?

A

Mesencephalic Nucleus (CN V)

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14
Q

What sensory nuclei are located in the pons?

A 
Main Sensory Nucleus (CN V)
Spinal Nucleus (CN V - goes from pons to medulla)
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15
Q

What sensory nuclei are located in the medulla?

A 
Spinal Nucleus (CN V - goes from pons to medulla)
Solitary Tract Nucleus
Vestibular Nucleus (grouped in pons as well)
Cochlear Nucleus  (grouped in pons as well)
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16
Q

What nuclei have GSE components?

A

Occulomotor Nucleus
Trochlear Nucleus
Abducens Nucleus
Hypoglossal Nucleus

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17
Q

What nuclei have GVE components?

A

Edinger-Westphal Nucleus
Superior Salivatory Nucleus
Inferior Salivatory Nucleus
Dorsal Motor Nucleus of X

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18
Q

What nuclei have SVE components?

A

Motor Nucleus of V
Facial Nucleus
Nucleus Ambiguous
Spinal Accessory Nucleus

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19
Q

What nuclei have GSA components?

A

Mesencephalic Nucleus of V
Main Sensory Nucleus of V
Spinal Nucleus of V

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20
Q

What nuclei have SVA components?

A

Solitary Tract Nucleus

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21
Q

What nuclei have SSA components?

A

Vestibular Nucleus

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22
Q

What nuclei have GVA components?

A

Solitary Tract Nucleus

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23
Q

What are the components of the olfactory nerve and the corresponding nucleus?

A

SVA - Olfactory Mucosa

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24
Q

What is CN I in close proximity with?

A

Hippocampus

25
Q

What are the components of the optic nerve and the corresponding nucleus?

A

SSA - Lateral Geniculate Body

SLO (Superior Colliculus -> Lateral Geniculate - Optic)

26
Q

What area of the brain is involved in vision?

A

Area 17

27
Q

What are the components of the occulomotor nerve and the corresponding nucleus?

A

GVE - Edinger-Westphal Nucleus (midbrain)

GSE - Occulomotor Nucleus (midbrain)

28
Q

Where are the nuclei of CN III found?

A

Directly below the 4th ventricle

29
Q

What are the components of the trochlear nerve and the corresponding nucleus?

A

GSE - Trochlear Nucleus (midbrain)

30
Q

Which nerve has the longest intracranial exposure?

A

Trochlear Nerve

31
Q

What is described as a “golf ball on a tee?”

A

Inferior Colliculus - golf ball

Lateral Lemniscus - tee

32
Q

What are the components of the trigeminal nerve and the corresponding nucleus?

A

GSA

  • Spinal Nucleus of V (pain/temperature from face)
  • Main Sensory Nucleus of V (conscious proprioception)
  • Mesencephalic Nucleus (unconscious proprioception from jaw)

SVE - Motor Nucleus of V (pons)

33
Q

What is the spinal nucleus of V analogous to?

A

Nucleus Propius -> STT

34
Q

What reflex does the mesencephalic nucleus enact?

A

Close the jaw

35
Q

What type of cells are found in the trigeminal ganglion?

A

Pseudounipolar Cells

36
Q

Where do the sensory pathways of CN V end?

A

VPM of the Thalamus

37
Q

What is the main sensory nerve of V analogous to?

A

Nucleus Cuneatus -> DCP

38
Q

What nerves relay pain and temperature information from the ear pinna?

A

CN VII, IX, X and nucleus of V

39
Q

What does the motor nucleus of V innervate?

A

Muscles of Mastication

40
Q

What are the components of the abducens nerve and the corresponding nucleus?

A

GSE - Abducens Nucleus (pons)

41
Q

What are the components of the facial nerve and the corresponding nucleus?

A

SVE - Motor Nucleus of VII (pons)

GVE - Superior Salivatory Nucleus (pons)

GVA - Solitary Nucleus (pons)

SVA - Solitary Nucleus (pons)

GSA - Spinal Nucleus of V (pons)

42
Q

Why is the upper face often spared in supranuclear facial nerve damage?

A

It is represented bilaterally in the upper face band only unilaterally in the lower face

43
Q

What are the components of the auditory nerve and the corresponding nucleus?

A

SSA

  • Cochlear Nuclei (medulla)
  • Vestibular Nuclei (medulla)
44
Q

What are the components of the glossopharyngeal nerve and the corresponding nucleus?

A

GVA - Solitary Nucleus (medulla)

SVA - Solitary Nucleus (medulla)

GSA - Spinal Nucleus of V (medulla)

SVE - Nucleus Ambiguous (medulla)

GVE - Inferior Salivatory Nucleus (medulla)

45
Q

What are the components of the vagus nerve and the corresponding nucleus?

A

GVA - Solitary Nucleus (medulla)

SVA - Solitary Nucleus (medulla)

GSA - Spinal Nucleus of V (medulla)

SVE - Nucleus Ambiguous (medulla)

GVE - Dorsal Motor Nucleus of X

46
Q

How is the solitary tract divided?

A

Taste is in the upper part

GVA is in the lower part

47
Q

What are the components of the spinal accessory nerve and the corresponding nucleus?

A

SVE - Accessory Nucleus (spinal cord)

48
Q

What are the components of the hypoglossal nerve and the corresponding nucleus?

A

GSE - Hypoglossal Nucleus (medulla)

49
Q

In lesion of the hypoglossal nerve, which side does the tongue deviate towards?

A

Towards the side of the lesion.

“Licking your wounds”

50
Q

Where does the motor column run?

A

Medial

51
Q

Where does the sensory column run?

A

Lateral

52
Q

From the basal plate running upwards in the GSE column, what nerves are found?

A

12 -> 6 -> 4 -> 3

53
Q

From the basal plate running upwards in the GVE column, what nerves are found?

A

Dorsal Motor 10 -> Inf Saliv. 9 -> Sup Saliv. 7 -> EW 3

54
Q

From the basal plate running upwards in the SVE column, what nerves are found?

A

Nucleus Ambiguous 9 and 10 -> 7 -> 5

55
Q

From the alar plate running upwards in the GVA/SVA column, what nerves are found?

A

Solitary Nucleus 7, 9 and 10 -> Nose

56
Q

From the alar plate running upwards in the GSA column, what nerves are found?

A

Spinal Nucleus of 5, 7, 9 and 10

57
Q

From the alar plate running upwards in the SSA column, what nerves are found?

A

8 -> Eyes

58
Q

Where does CN XII come out from the brainstem?

A

At the level of the medulla between the olive and the pyramid.

Neuroscience (19 decks)

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