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Gross Anatomy I > Autonomic Nervous System > Flashcards

Autonomic Nervous System Flashcards

1
Q

What is the functional definion of the Autonomic Nervous System (ANS).

A

Controls involuntary visceral activity in order to maintain homeostasis or respond to stress.

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2
Q

What is the anatomy definion of the Autonomic Nervous System (ANS).

A

General Visceral Efferent (GVE) system

ie. the 2-neuron pathway from the VNS to visceral organs

Above + General Visceral Afferents (GVA)

Both of the above + those components of the CNS that regulate visceral activity (ie. those components that send signals to and/or receive signals from the GVE and GVA systems.)

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3
Q

The General Visceral Efferent (GVE) system is divided physiologically and anatomically into 2 components:

A

Sympathetic

Fight or flight
Thoracolumbar (T1 - L4/5)

Parasympathetic

Homeostasis (Rest and Digest)
Craniosacral (Cranial/Sacrum)

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4
Q

The General Visceral Efferent (GVE) sympathetic component is responsible for:

A

Fight or Flight

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5
Q

The General Visceral Efferent (GVE) sympathetic component is located:

A

Thoracolumbar T1 - L4/5

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6
Q

The General Visceral Efferent (GVE) Parasympathetic component is located:

A

Craniosacral

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7
Q

The General Visceral Efferent (GVE) Parasympathetic component is responsible for:

A

Homeostasis (Rest and Digest)

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8
Q

What is a collection on cell bodies located outside the CNS?

A

Ganglion

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9
Q

What are the two components of a 2 neuron pathway of the General Visceral Efferent (GVE) system.

A

Preganglionic

Post ganglionic

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10
Q

The General Visceral Efferent (GVE) intervates:

A

Smooth Muscles

Cardiac Muscles

Glands

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11
Q

Which General Visceral Efferent (GVE) is number 1:

A

Sympathetic

General Visceral Efferent (GVE)

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12
Q

Which General Visceral Efferent (GVE) is number 2:

A

Parasympathetic

General Visceral Efferent (GVE)

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13
Q

Where does the Sympathetic Nervous System occur?

A

T1 - L4/5

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14
Q

What is the Preganglionic Pathway in the Sympathetic Nervous system (Body Wall & Limbs)?

A

Preganglionic Pathway:

Lateral gray horn (of T1-L5) –> Ventral root –> spinal nerve –> ramus communicans –> sympathetic trunk –>

First part of the pathway is ALWAYS the same!

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15
Q

What is the Ganglion in the Sympathetic Nervous system (Body Wall & Limbs)?

A

Ganglion:

sympathetic trunk ganglia –>

(*Potentially different)

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16
Q

Sympathetic Nervous system, what is number 1?

A

Post Ganglionic

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17
Q

Sympathetic Nervous system, what is number 2?

A

Sympathetic Trunk

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18
Q

Sympathetic Nervous system, what is number 3?

A

Ramus Communicans

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19
Q

Sympathetic Nervous system, what is number 4?

A

Pre-Ganglionic

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20
Q

Sympathetic Nervous system, what is number 5?

A

Ventral Root

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21
Q

Sympathetic Nervous system, what is number 6?

A

Spinal Nerve

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22
Q

What is the nerve that is predominately depicted in this image?

A

Sympathetic Trunk

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23
Q

What is number 1?

A

Ventral branch of the spinal nerve

(mixed nerve)

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24
Q

What is number 2?

A

Dorsal branch of the spinal nerve

(mixed nerve)

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25
Q

What is number 3?

A

Branching off the spinal nerve is the:

Communicating branch

(ramus communicans)

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26
Q

What is number 4&5?

A

Sympathetic trunk ganglion

(sympathetic trunk is not drawn)

[paravertebral ganglion]

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27
Q

What is the red arrow?

A

Somatic Afferents

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28
Q

What is the blue arrow?

A

Somatic Efferents

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29
Q

What is the Green arrow?

A

Autonomic Afferents

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30
Q

What is the light purple arrow?

A

Pre-Ganglionic sympathetic Efferents

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31
Q

What is the dark purple arrow?

A

Post-Ganglionic sympathetic Efferents

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32
Q

What is the Postganglionic Pathway in the Sympathetic Nervous system (Body Wall & Limbs)?

A

rami communicants to spinal nerves –> dorsal or ventral branches of spinal nerves

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33
Q

What is the Preganglionic??? Pathway in the Sympathetic Nervous system (Head)?

A

lateral gray horn (of ~ T1 - T3) –> ventral root –> spinal nerve –> ramus communicans –> sympathetic trunk –> ansa subclavia –> certical sympathetic trunk (vagosympathetic trunk) –>

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34
Q

What is the Ganglion in the Sympathetic Nervous system (Head)?

A

cranial cervical ganglion –>

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35
Q

What is the Postganglionic Pathway in the Sympathetic Nervous system (Head)?

A

internal and external carotid nerve plexuses (nerves follow blood supply to the head)

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36
Q

What is the Preganglionic Pathway in the Sympathetic Nervous system (Neck)?

A

lateral gray horn (of ~T3-T5) –> ventral root –> spinal nerve –> ramus communicans –> sympathetic trunk –>

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37
Q

What is the Ganglion in the Sympathetic Nervous system (Neck)?

A

cerviocthoracic ganglion –>

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38
Q

What is the Postganglionic Pathway in the Sympathetic Nervous system (Neck)?

A

vertebral nerve –> rami communicantes to cervical spinal nerves –> dorsal or ventral branches of cervical spinal nerves

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39
Q

What is the Preganglionic Pathway in the Sympathetic Nervous system (Thorax)?

A

lateral gray horn (of ~T5-T8) –> ventral root –> spinal nerve –> ramus communicans –> sympathetic trunk – [ansa subclavia] –>

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40
Q

What is the Glanglion in the Sympathetic Nervous system (Thorax)?

A

cervicothoracic ganglion [or middle cervical ganglion] –>

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41
Q

What is the Postganglionic Pathway in the Sympathetic Nervous system (Thorax)?

A

branches from the ansa subclavia [or branches corsing with vagus nerve]

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42
Q

What is number 1?

A

cranial cervical ganglion

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43
Q

What is number 2?

A

vagosympathetic trunk

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44
Q

What is number 3?

A

vertebral n.

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45
Q

What is number 4?

A

middle cervical ganglion

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46
Q

What is number 5?

A

cervicothoracic ganglion

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47
Q

What is number 6?

A

rami communicantes

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48
Q

What is number 7?

A

vagus n.

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49
Q

What is number 8?

A

ansa subclavia

50
Q

What is number 1?

A

middle cervical ganglion

51
Q

What is number 2?

A

ansa subclavia

52
Q

What is number 3?

A

cervicothoracic ganglion

53
Q

What is number 4?

A

vagosympathetic trunk

54
Q

What is number 5?

A

sympathetic trunk

55
Q

What is the Preganglionic Pathway in the Sympathetic Nervous system (Abdominal Cavity)?

A

lateral gray horn (of ~T7-L2) –> central root –> spinal nerve –> ramus communicans –> sympathetic trunk –> major, minor, or lumbar splanchnic nerves

56
Q

What is the Glanglion in the Sympathetic Nervous system (Abdominal Cavity)?

A

prevetrebral ganglia within plexus (celiacomesenteric ganglion, caudal mesenteric ganglion, others) –>

57
Q

What is the Postganglionic Pathway in the Sympathetic Nervous system (Abdominal Cavity)?

A

nerve plexuses on abdominal vessels (nerves follow blood supply to abdominal viscera)

58
Q

What is number 1?

A

rami communicantes

59
Q

What is number 2?

A

major and minor splanchnic nerves

60
Q

What is number 3?

A

diaphragm

61
Q

What is number 4?

A

celiacomesenteric ganglion & plexus

62
Q

What is number 5?

A

lumbar splanchnic nn.

63
Q

What is number 6?

A

caudal mesenteric ganglion

64
Q

What is number 1?

A

Sympathetic trunk

65
Q

What is number 2?

A

celiacomesenteric ganglion & plexus

66
Q

What is number 3?

A

major splanchnic nn

67
Q

What is number 4?

A

minor splanchnic nn

68
Q

What is the Preganglionic Pathway in the Sympathetic Nervous system (Pelvic Cavity)?

A

lateral gray horn (of lumbar cord segments) –> ventral root –> spinal nerve –> ramus communicans –> sympathetic trunk –> lumbar splanchnic nerves

69
Q

What is the Ganglion in the Sympathetic Nervous system (Pelvic Cavity)?

A

caudal mesenteric ganclion –>

70
Q

What is the Postganglionic Pathway in the Sympathetic Nervous system (Pelvic Cavity)?

A

left/right hypogastric nerves –> pelvic plexus –> [branches which follow blood vessels to pelvic viscera]

71
Q

What is number 1?

A

lumbar splanchnic nn.

72
Q

What is number 2?

A

caudal mesenteric ganglion

73
Q

What is number 3?

A

hypogastric nerve

74
Q

What is number 4?

A

pelvic plexus

75
Q

What is number 1?

A

aorta

76
Q

What is number 2?

A

caudal mesenteric ganglion

77
Q

What is number 3?

A

hypogastric n.

78
Q

What is CN X and what does it innervate?

A

Vagus n.

Thoracic and abdominal viscera

79
Q

What are the main components for the Parasympathetic Nervous System?

A

CN 111

CN V11

CN IX

CN X

Sacral spinal cord

80
Q

What does the sacral spinal cord innervate?

A

Pelvic viscera

81
Q

What is the Preganglionic Pathway in the Parasympathetic Nervous System (CN X: Vagus Nerve) [Thorax (Cervical Revion)]?

A

parasympathetic nucleus of vagus nerve –> vagus nerve –> vagosympathetic trunk –> vagus nerve –> vagal branches to hear, lungs, etc (cardica nerves) [recurrent laryngeal nerves]

82
Q

What is the Ganglion in the Parasympathetic Nervous System (CN X: Vagus Nerve) [Thorax (Cervical Revion)]?

A

terminal ganglia (within organs innervated) –>

83
Q

What is the Postganglionic Pathway in the Parasympathetic Nervous System (CN X: Vagus Nerve) [Thorax (Cervical Revion)]?

A

within organ

84
Q

What is the Preganglionic Pathway in the Parasympathetic Nervous System (CN X: Vagus Nerve) [Abdomen]?

A

parasympathetic nucleus of vagus nerve –> vagus nerve –> vagosympathetic trunk –> vagus nerve –> dorsal & ventral branches –> dorsal & ventral vegal trunks –> dorsal vagal trunk joins celiacomesenteric pelxus via veliac branch, ventral vagal trunk goes directly to stomach and liver

85
Q

What is the Ganglion in the Parasympathetic Nervous System (CN X: Vagus Nerve) [Abdomen]?

A

terminal ganlia (within organs innervated) –>

86
Q

What is the Postganglionic Pathway in the Parasympathetic Nervous System (CN X: Vagus Nerve) [Abdomen]?

A

within organ

87
Q

What is number 1?

A

left vagosympathetic nerve trunk

88
Q

What is number 2?

A

left vagus nerve

89
Q

What is number 3?

A

cardiac nn.

90
Q

What is number 4?

A

recurrent laryngeal n.

91
Q

What is number 5?

A

ventral vagal nerve trunk

(to liver and stomach)

92
Q

What is number 6?

A

dorsal vagal nerve trunk

93
Q

What is number 7?

A

dorsal vagal nerve trunk

(to celiacomesenteric nerve plexus)

94
Q

What is number 8?

A

celiac plexus

95
Q

What is number 9?

A

cranial mesenteric plexus

96
Q

What is number 1?

A

Vagosympathetic trunk

97
Q

What is number 2?

A

Vagus n.

98
Q

What is number 3?

A

ventral vagal nerve trunk

99
Q

What is number 4?

A

dorsal vagal nerve trunk

100
Q

What is number 1?

A

celiacomesenteric ganglia

101
Q

What is number 1?

A

right vagosympathetic nerve trunk

102
Q

What is number 2?

A

right vagus nerve

103
Q

What is the gray line wrapping around the aorta?

A

recurrent laryngeal n.

104
Q

What is number 3?

A

ventral vagal nerve trunk

(to liver & stomach)

105
Q

What is number 4?

A

dorsal vagal nerve trunk

106
Q

What is number 5?

A

dorsal vagal nerve trunk

(to celiacomesenteric nerve plexus)

107
Q

What is number 6?

A

celiac plexus

108
Q

What is number 7?

A

cranial mesenteric plexus

109
Q

What is the Preganglionic Pathway in the Parasympathetic Nervous System (Sacral Spinal Cord S1-S3)?

A

intermediate gray matter (of S1-S3) –> ventral root –> spinal nerve –> ventral branch –> lumbosacral plexus –> pelvic nerve –> pelvic plexus –>

110
Q

What is the Ganglion in the Parasympathetic Nervous System (Sacral Spinal Cord S1-S3)?

A

pelvic ganglia within pelvic plexus –>

111
Q

What is the Postganglionic Pathway in the Parasympathetic Nervous System (Sacral Spinal Cord S1-S3)?

A

branches from pelvic plexus to pelvic visera

112
Q

What is number 1?

A

ventral root

113
Q

What is number 2?

A

spinal nerve

114
Q

What is number 3?

A

lumbosacral plexus

115
Q

What is number 4?

A

pelvic nerve

116
Q

What is number 5?

A

pelvic plexus

117
Q

What is number 6?

A

hypogastric nerve

118
Q

What is number 1?

A

pelvic visceral

119
Q

What is number 2?

A

hypogastric nerve

120
Q

What is number 3?

A

pelvic plexus

Gross Anatomy I (18 decks)

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