Chapter 16 - The Autonomic Nervous System Notes Flashcards

(38 cards)

0
Q

Function of ans

A

Coordinates the physiological systems of the body

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1
Q

ANS

A

Autonomic nervous system

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2
Q

Ans is a _____ system

A

Motor

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3
Q

Ans is under ______ control

A

Involuntary

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4
Q

Ans controls these functions

A
Heart rate
Blood pressure
Respiration
Gi functions
Glandular secretions
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5
Q

Number of divisions in ans

A

2

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6
Q

What are division of ans

A

Sympathetic

Parasympathetic

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7
Q

Sympathetic division consists of

A

Preganglionic fibers from the lumbar and thoracic spinal nerve segments
(Thoracolumbar)

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8
Q

Sympathetic division made up of nerve fibers from

A

Segments of T1-L2

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9
Q

What are paravertebral ganglia

A

Sympathetic chain ganglia

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10
Q

Where is sympathetic chain ganglia located

A

Adjacent to spinal column in thoracolumbar reguon

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11
Q

What division has flight or fight system

A

Sympathetic - preganglionic fibers

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12
Q

Nerves that exit the sympathetic chain ganglia are called

A

Sympathic nerves

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13
Q

Where do sympathetic nerves travel

A

Directly to visceral organs

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14
Q

What are the second order neurons to visceral organs

A

Sympathetic nerves

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15
Q

Sympathetic ganglia that are separate from the ganglia are called

A

Collateral ganglia or prevertebral ganglia

16
Q

Collateral ganglia form the

A

Splanchnic nerves

17
Q

What does the splanchnic nerves innervate

A

Visceral organs

18
Q

Sympathetic fibers also innervate the ______ that sit on the kidneys

A

Adrenal glands

19
Q

What does the adrenal glands secrete

A

Epinephrine

Norepinephrine

20
Q

The adrenal gland is considers a specialized structure that contains

A

Second order neuron

21
Q

The sympathetic division influences all ______ and ________ structures in the body

A

Visceral

Somatic

22
Q

Effects of sympathetic stimulation (increases)

A
Mental alertness
Metabolic rate
Respiratory rate
Heart rate
Blood pressure
23
Q

Effects of sympathetic stimulation (activate/deactivate)

A

Activate:
Energy reserves
Sweat glands

Deactivate:
Digestive and urinary tract functions

24
The parasympathetic division is composed of
Neurons from brain stem and sacral nerve roots | Craniosacral
25
Functions of PSD directed towards
Food processing Absorption of nutrients Relaxing states of the body
26
``` PSD = _______ SD = ________ ```
Calming system | Activity system
27
Neurotransmitter involved in the psd
Acetylcholine (ach)
28
All psd synapses secrete
Ach
29
The psd nervous system influences
Only visceral structures supplied by cranial nerves or those in abdominopelvic cavity
30
Effects of PSD stimulation (decrease/lower)
Metabolic rate Heart rate Blood pressure
31
Effects of PSD stimulation (increases)
Digestive activity | Urination and defecation
32
Some visceral organs have _______ innervation
Dual sympathetic and parasympathetic
33
Dual innervation nerves are called
Autonomic plexuses or nerve network
34
List of dual autonomic plexuses
``` Cardiac Pulmonary Celiac Inferior mesenteric Hypogastric ```
35
The two systems of sympathetic and parasympathetic will
Inhibit Function or activate function within visceral organs
36
The _______ involved with the ANS provide automatic motor responses to stimuli that can be modified or inhibited by higher brain centers
Visceral reflexes
37
The ANS is neurologically in _______ with the higher brain centers as well as ______ the visceral systems in the body.
Communication | Controlling