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Cranial Nerves Overview Flashcards

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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
Which Cranial Nerve Nuclei are associated with the SVE?
5 - Trigeminal Motor 7 - Facial 9/10 - Nuc Ambiguus 11 - Spinal Accessory
26
What is the General Visceral Efferent Functional Column?
Parasympathetic Column
27
Which Cranial Nerves are associated with the GVE?
3, 7, 9, 10
28
Which Cranial Nerve Nuclei are associated with the GVE?
3 - EW 7 - Sup Salivatory 9 - Inf Salivatory 10 - Dorsal Motor Nuc of X
29
What is the General Somatic Efferent Functional Column?
Somatic Motor Column
30
Which Cranial Nerves are associated with the GSE?
3, 4, 6, 12
31
Which Cranial Nerve Nuclei are associated with the GSE?
3 - Oculomotor 4 - Trochlear 6 - Abducens 12 - Hypoglossal
32
What is the Special Somatic Afferent Functional Column?
Special Somatic Sensory Column
33
Which Cranial Nerves are associated with SSA?
8
34
Which Cranial Nerve Nuclei are associated with SSA?
8 - Vestibular | 8 - Dorsal and Ventral Cochlear
35
What is the General Somatic Afferent Functional Column?
General Somatic Sensory Column
36
Which Cranial Nerves are associated with the GSA?
5
37
Which Cranial Nerve Nuclei are associated with the GSA?
5 - Mesencephalic 5 - Chief Sensory 5 - Spinal Trigeminal
38
What are the Special and General Visceral Afferent Functional Columns?
Visceral Sensory Column
39
Which Cranial Nerves are associated with the SVA/GVA
7, 9 & 10
40
Which are the Cranial Nerve Nuclei associated with the SVA/GVA?
7, 9, 10 - SVA - Rostral Nuc Solitarius | 9, 10 - GVA - Caudal Nuc Solitarius
41
What are the three dopaminergic projection systems?
Mesostriatal (Nigrostriatal) Mesolimbic Mesocortical
42
What does the Mesostriatal p'way connect?
SNc to the Caudate and Putamen
43
What does the Mesolimbic p'way connect?
Ventral tegmentum to 5 structures of limbic system
44
What does the Mesocortical p'way connect?
SNc and ventral tegmentum to the prefrontal cortex
45
What are the 5 structures of the limbic system?
``` Cingulate Gyrus Nucleus Accumbent Medial Orbital Frontal Cx Amygdala Hippocampus and Parahippocampal Gyrus ```
46
Which cranial nerves exit through which passages in the anterior fossa?
1 - Cribriform Plate | 2 - Optic Foramen
47
Which cranial nerves exit through the middle fossa?
3, 4, 6 | V1, V2, V3
48
Which passages do cranial nerves exit in the middle fossa?
3, 4, 6, V1 - Superior Orbital Fissure V2 - Foramen Rotundum V3 - Foramen Ovale
49
Which cranial nerves exit through the posterior fossa?
7, 8 | 9, 10, 11
50
Which passages do cranial nerves exit in the middle fossa?
7, 8 - Internal Acoustic Meatus | 9, 10, 11 - Jugular Foramen
51
How does CN XII exit the cranium?
Hypoglossal Canal
52
Provide name, type, and cranial exit for CN I
Olfactory SVA Cribriform Plate
53
Provide name, type, and cranial exit for CN II
Optic SSA Optic Foramen
54
Provide name, type, and cranial exit for CN III
Oculomotor GSE/GVE Superior Orbital Fissure
55
Provide name, type, and cranial exit for CN IV
Trochlear GSE Superior Orbital Fissure
56
Provide name, type, and cranial exit for CN V1
Trigeminal Opthalmic GVA/SVA Superior Orbital Fissure
57
Provide name, type, and cranial exit for CN V2
Trigeminal Maxillary GVA/SVA Foramen Rotundum
58
Provide name, type, and cranial exit for CN V3
Trigeminal Mandibular GSA/GVE Foramen Ovale
59
Provide name, type, and cranial exit for CN VI
Abducens GSE Superior Orbital Fissure
60
Provide name, type, and cranial exit for CN VII
Facial SVE, SVA Stylomastoid Foramen
61
Provide name, type, and cranial exit for CN VIII
Vestibulocochlear SSA Internal Auditory Meatus
62
Provide name, type, and cranial exit for CN IX
Glossopharyngeal SVE, GVE, SVA/GVA Jugular Foramen
63
Provide name, type, and cranial exit for CN X
Vagus SVE, GVE, SVA/GVA Jugular Foramen
64
Provide name, type, and cranial exit for CN XI
Spinal Accessory SVE Foramen Magnum
65
Provide name, type, and cranial exit for CN XII
Hypoglossal GSE Hypoglossal Canal

Cranial Nerves (2 decks)

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