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Anatomy - Sav > Autonomic Nervous System > Flashcards

Autonomic Nervous System Flashcards

(84 cards)

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1
Q

What does the autonomic nervous system divide into?

A

Sympathetic and Parasympathetic

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2
Q

What does the somatic nervous system divide into?

A

Sensory (afferent) & Motor (efferent)

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3
Q

What does the CNS develop from?

A

Neural tube

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4
Q

Where does the PNS develop from?

A

Develop from neural crest and CNS outgrowths

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5
Q

Receives information from and responds to external world

A

Somatic

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6
Q

Innervates structures that develop from somites

A

Somatic (Body)

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7
Q

Innervates organ systems & its elements

A

Visceral (Organs)

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8
Q

Detects and responds to information within body

A

Visceral (Organs)

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9
Q

What nervous system is excitatory?

A

Somatic

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10
Q

Stimulation of the axon/nerve results in the activation of a particular action

A

Somatic NS

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11
Q

Concerned with conscious sensation and response usually via striated muscle and contains parts of the CNS and PNS

A

Somatic NS

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12
Q

Provides sensory and motor innervation to all parts of the body except: viscera, smooth and cardiac muscle, & glands.

A

Somatic NS

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13
Q

Our autonomic NS and in generally concerned with sensations of our internal body and actions via smooth muscles and glands

A

Visceral NS

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14
Q

Provides efferent involuntary motor innervation to smooth muscle, the conducting system of the heart, and glands

A

Visceral NS

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15
Q

Provides afferent sensory innervation from the viscera (pain and autonomic reflexes)

A

Visceral NS

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16
Q

Can be excitatory of inhibitory when stimulated

A

ANS

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17
Q

Group of cell bodies in CNS

A

Nucleus

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18
Q

Group of cell bodies in PNS

A

Ganglion

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19
Q

Glia in CNS

A

Astrocyte
Oligodendroglia
Microglia

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20
Q

Glia in PNS

A

Schwann cell

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21
Q

Another name for schwann cell

A

Neurilemmal cell

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22
Q

Visceral portion of the NS which has sensory or afferent fibers

A

Autonomic NS

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23
Q

Monitors changes to the viscera. Arise from the neural crest

A

General Visceral Afferent

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24
Q

2 neuron chain

A

General Visceral efferent

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25
What spinal levels are sympathetic?
T1-L2 (3)
26
Supply/innervate peripheral glands, smooth muscle and other viscera
Sympathetic
27
What is parasympathetic associated with?
``` Cranial nerves (III, VII, IX, &X) S2-S4 ```
28
Supply and innervate peripheral viscera
Parasympathetic
29
Neurons in the walls of the alimentary canal controlling motility (contractions of the gut wall), exocrine and endocrine secretions, & blood flow thru the gastrointestinal tract, it also regulates immunological and inflammatory processes.
Enteric
30
What connections are between the enteric system and the CNS
Parasympathetic and sympathetic
31
Paravertebral sympathetic trunk
Sympathetic chain
32
Para-aortic ganglia, abdomen and pelvic
Pre-vertebral ganglia
33
Preganglionic cells of sympathetic
T1-L2 (thoracolumbar)
34
Postganglionic sympathetic
- Sympathetic chain | - Prevertebral chain ganglia via splanchnic nn
35
Pre ganglionic cells of parasympathetic
CNs S2-S4 Craniosacral
36
Postganglionic parasympathetic
4 cranial ganglia | Ganglia with organs
37
Name the collateral ganglia pairs/ prevertebral ganglia
- Celiac - Superior mesenteric - Aorticorenal - Inferior mesenteric
38
1. Ascend then synapse 2. Synapse at level of exit 3. Descend then synapse 4. Pass through without synapsing
4 options once presynaptic fiber enters the chain
39
- Innervation of the head - Cervical cardiopulmonary splanchnic nerves - Spinal nerves to neck, upper trunk & upper limb
Ascend then synapse
40
- Thoracic cardiopulmonary splanchnic nerves | - Spinal nerves to middle trunk
Synapse at level of exit
41
Spinal nerves to lower trunk & lower limb
Descend then synapse
42
Innervation of abdominopelvic viscera
Pass through without synapsing
43
Somatic innervation
Sacral plexus
44
Sympathetic and parasympathetic innervation
Autonomic plexuses
45
What fibers does the hypogastric plexus contain?
Sympathetic and parasympathetic
46
What does the hypogastric plexus cover?
Birfucation of aorta and upper sacrum
47
Where are sympathetic post ganglionic cell bodies found?
- Sympathetic chain | - Collateral ganglia
48
Example of collateral ganglia
- Superior meseteric - Celiac - Inferior Mesenteric - Aoritcorenal
49
Where are chromaffin cells found?
Adrenal medulla
50
Modification of post synaptic sympathetic cell
Chromaffin cell
51
Where are sympathetic preganglionic cell bodies found in what regon
Lateral horn or intermedial cell column
52
How do prevertebral ganglia arrive?
Via splanchnic nerve
53
Where are postganglioic cell body location?
Prevertebral plexus
54
What joins to make spinal nerve?
Dorsal and ventral root
55
What does spinal nerve divide into?
Dorsal and ventral ramus
56
White ramus
Preganglionic sympathetic
57
Grey ramus
Post ganglionic sympathetic
58
What are the levels that sympathetics can synapse
C2-C8 T1-L2 L3-Co
59
Pass through chain without synapsing
Splanchnic nerves
60
Superior mesenteric
Midgut
61
Inferior mesenteric
hindgut
62
T5-T9, goes to celiac ganglion
T5-T9, goes to celiac ganglionGreater splanchnic nerve
63
T10-11, goes to superior meseteric
Lesser Splanchnic nerve
64
T12, goes to Aorticorenal
Least splanchnic nerve
65
Where do lumbar splanchnics go?
IMA
66
What do sacral splanchnic serve
Pelvic viscera
67
What cranial nerves are associated with parasympathetic?
III, VII, IX, X
68
Descends and addresses parasympathetics all the way to the proximal 2/3 of the transverse colon
Vagus
69
Distal extent of parasympathetic innervation
proximal 2/3 of the transverse colon
70
Come together to form the hypogastric plexus
Lumbar and sacral splanchnics
71
Where does chain ganglia begin to move from lateral to medial?
Sacral promentories
72
Where do sympathetic trunks join?
Ganglion impar
73
Where is the prominent sacral splanchnic nerve which contributes directly to hypogastric plexus?
S2 & S3
74
Where do pelvic splanchnic come from?
Ventral ramus
75
Where does sacral splanchnic come from?
Sympathetic chain ganglion
76
Nervous system that is apart of the intestinal tract
Enteric NS
77
Large cells, prominent nuclei, surrounded by a number of schwann cells
Submucosa plexus | Meissner's plexus
78
How can you identify submucosa plexus?
Surrounded by dense irregular CT
79
Plexus that is located between smooth muscle layers (Circular and longitudinal)
Myenteric Plexus (Auerbach's plexus)
80
What provides parasympathetic innervation to the hindgut?
Pelvic splanchnic (Superior hypogastric)
81
Do sacral splanchnic come off of grey rami?
No, they come off directly
82
Provides parasympathetic innervation to hindgut
Superior hypogastric
83
Provides parasympathetic innervation to pelvic viscera
Inferior hypogastric
84
Do kidneys get parasympathetic innervation?
No

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