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Cranial Nerves > Cranial Nerves Overview > Flashcards

Cranial Nerves Overview Flashcards

1
Q

What 3 categories can sensory cranial nerves be categorized into?

A

General
Visceral
Special

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2
Q

What do General Sensory Nerves convey?

A 
Touch
Vibration
Proprioception
Pressure
Pain
Temperature
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3
Q

What do Visceral Sensory Nerves convey?

A

All visceral input except for pain.

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4
Q

What do Special Sensory Nerves convey?

A 
Smell
Vision
Hearing
Taste
Balance
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5
Q

What are the 3 distinct motor cranial nerve divisions?

A

General
Branchial
Visceral

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6
Q

What do General Somatic Motor Nerves innervate?

A

Innervate muscles developed from somites

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7
Q

What do Branchial Motor Nerves innervate?

A

Innervate muscles developed from branchial arches

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8
Q

What do Visceral Motor Nerves innervate?

A

Innervate all glands and smooth muscle

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9
Q

Cranial nerve efferent pathways originate from which type of neuron?

A

Upper Cortical Neuron

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10
Q

Do descending cortical neurons have, ipsi, contra, or bilateral projections?

A

Bilateral

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11
Q

Which muscles do not have bilateral innervation via LMNs?

A

SCM
Trapezius
Lower 1/2 Face

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12
Q

Damage to a UMN results in what?

A

Paresis/Paralysis during volitional movement
Spasticity
Exaggerated MSRs

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13
Q

What is spasticity?

A

Increase of tone in one compartment.

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14
Q

When will atrophy occur with UMN lesion?

A

Only after long-standing paralysis.

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15
Q

Damage to a LMN results in what?

A

Paresis

Weakness

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16
Q

When will paralysis occur with LMN lesion?

A

If all the neurons in a particular group are affected.

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17
Q

What are the Special Sensory nerves?

A

1
2
8

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18
Q

CN I is a derivative of what?

A

Telencephalon

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19
Q

CN II is a derivative of what?

A

Diencephalon

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20
Q

CN VIII is a derivative of what?

A

Rhombencephalic-Pontine

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21
Q

What are the 3 motor homologous columns?

A

SVE - Branchial Motor
GVE - Parasympathetic
GSE - Somatic Motor

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22
Q

What are the 3 sensory homologous columns?

A

SSA - Special Somatic
GSA - General Somatic Sensory
SVA/GVA - Visceral Sensory

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23
Q

What is the Special Visceral Efferent Functional Column?

A

Branchial Motor Column

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24
Q

Which Cranial Nerves are associated with the SVE?

A

5, 7, 9, 10, 11

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25
Q

Which Cranial Nerve Nuclei are associated with the SVE?

A

5 - Trigeminal Motor
7 - Facial
9/10 - Nuc Ambiguus
11 - Spinal Accessory

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26
Q

What is the General Visceral Efferent Functional Column?

A

Parasympathetic Column

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27
Q

Which Cranial Nerves are associated with the GVE?

A

3, 7, 9, 10

28
Q

Which Cranial Nerve Nuclei are associated with the GVE?

A

3 - EW
7 - Sup Salivatory
9 - Inf Salivatory
10 - Dorsal Motor Nuc of X

29
Q

What is the General Somatic Efferent Functional Column?

A

Somatic Motor Column

30
Q

Which Cranial Nerves are associated with the GSE?

A

3, 4, 6, 12

31
Q

Which Cranial Nerve Nuclei are associated with the GSE?

A

3 - Oculomotor
4 - Trochlear
6 - Abducens
12 - Hypoglossal

32
Q

What is the Special Somatic Afferent Functional Column?

A

Special Somatic Sensory Column

33
Q

Which Cranial Nerves are associated with SSA?

A

8

34
Q

Which Cranial Nerve Nuclei are associated with SSA?

A

8 - Vestibular

8 - Dorsal and Ventral Cochlear

35
Q

What is the General Somatic Afferent Functional Column?

A

General Somatic Sensory Column

36
Q

Which Cranial Nerves are associated with the GSA?

A

5

37
Q

Which Cranial Nerve Nuclei are associated with the GSA?

A

5 - Mesencephalic
5 - Chief Sensory
5 - Spinal Trigeminal

38
Q

What are the Special and General Visceral Afferent Functional Columns?

A

Visceral Sensory Column

39
Q

Which Cranial Nerves are associated with the SVA/GVA

A

7, 9 & 10

40
Q

Which are the Cranial Nerve Nuclei associated with the SVA/GVA?

A

7, 9, 10 - SVA - Rostral Nuc Solitarius

9, 10 - GVA - Caudal Nuc Solitarius

41
Q

What are the three dopaminergic projection systems?

A

Mesostriatal (Nigrostriatal)
Mesolimbic
Mesocortical

42
Q

What does the Mesostriatal p’way connect?

A

SNc to the Caudate and Putamen

43
Q

What does the Mesolimbic p’way connect?

A

Ventral tegmentum to 5 structures of limbic system

44
Q

What does the Mesocortical p’way connect?

A

SNc and ventral tegmentum to the prefrontal cortex

45
Q

What are the 5 structures of the limbic system?

A 
Cingulate Gyrus
Nucleus Accumbent
Medial Orbital Frontal Cx
Amygdala
Hippocampus and Parahippocampal Gyrus
46
Q

Which cranial nerves exit through which passages in the anterior fossa?

A

1 - Cribriform Plate

2 - Optic Foramen

47
Q

Which cranial nerves exit through the middle fossa?

A

3, 4, 6

V1, V2, V3

48
Q

Which passages do cranial nerves exit in the middle fossa?

A

3, 4, 6, V1 - Superior Orbital Fissure
V2 - Foramen Rotundum
V3 - Foramen Ovale

49
Q

Which cranial nerves exit through the posterior fossa?

A

7, 8

9, 10, 11

50
Q

Which passages do cranial nerves exit in the middle fossa?

A

7, 8 - Internal Acoustic Meatus

9, 10, 11 - Jugular Foramen

51
Q

How does CN XII exit the cranium?

A

Hypoglossal Canal

52
Q

Provide name, type, and cranial exit for CN I

A

Olfactory
SVA
Cribriform Plate

53
Q

Provide name, type, and cranial exit for CN II

A

Optic
SSA
Optic Foramen

54
Q

Provide name, type, and cranial exit for CN III

A

Oculomotor
GSE/GVE
Superior Orbital Fissure

55
Q

Provide name, type, and cranial exit for CN IV

A

Trochlear
GSE
Superior Orbital Fissure

56
Q

Provide name, type, and cranial exit for CN V1

A

Trigeminal Opthalmic
GVA/SVA
Superior Orbital Fissure

57
Q

Provide name, type, and cranial exit for CN V2

A

Trigeminal Maxillary
GVA/SVA
Foramen Rotundum

58
Q

Provide name, type, and cranial exit for CN V3

A

Trigeminal Mandibular
GSA/GVE
Foramen Ovale

59
Q

Provide name, type, and cranial exit for CN VI

A

Abducens
GSE
Superior Orbital Fissure

60
Q

Provide name, type, and cranial exit for CN VII

A

Facial
SVE, SVA
Stylomastoid Foramen

61
Q

Provide name, type, and cranial exit for CN VIII

A

Vestibulocochlear
SSA
Internal Auditory Meatus

62
Q

Provide name, type, and cranial exit for CN IX

A

Glossopharyngeal
SVE, GVE, SVA/GVA
Jugular Foramen

63
Q

Provide name, type, and cranial exit for CN X

A

Vagus
SVE, GVE, SVA/GVA
Jugular Foramen

64
Q

Provide name, type, and cranial exit for CN XI

A

Spinal Accessory
SVE
Foramen Magnum

65
Q

Provide name, type, and cranial exit for CN XII

A

Hypoglossal
GSE
Hypoglossal Canal

Cranial Nerves (2 decks)

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