Autonomic Nervous System Flashcards

0
Q

What does the CNS consist of

A

The brain in the spine

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1
Q

CNS

A

Central nervous system

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2
Q

PNS

A

Peripheral nervous system

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3
Q

Somatic is voluntary and innervates what

A

Skeletal muscles

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4
Q

The autonomic nervous system is in voluntary and innervates what

A

Digestion and circulation

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5
Q

The autonomic nervous system is divided into sympathetic and parasympathetic divisions what’s the difference

A

Sympathetic is fight or flight

Parasympathetic is rest and digest

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6
Q

The unit of cellular structure of the CNS

A

Neuron

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7
Q

Electrical influx or action potential

A

How a neuron communicates

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8
Q

In what part of the neuron do the normal cell processes occurs

A

Cell body or soma

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9
Q

Where are the receptors located

A

In the dendrites

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10
Q

Axon is know as the _____ part

A

Sending

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11
Q

In the sending part, how many directions does the impulse travel

A

One direction

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12
Q

Where do axons terminate

A

Axon terminal / vesicles

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13
Q

How do neurons communicate

A

By way of the synaptic cleft

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14
Q

The target is also know as

A

Effector

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15
Q

If the synapse is outside the CNS what is it called

A

Ganglion

16
Q

Where do neurons of the sympathetic division originate

A

Thoracolumbar portion of spine

17
Q

The origin portion of the spinal cord is known as preganglionic or________

A

Presynapse

18
Q

Postganglionic or post synapse neurons extend where

A

Organs

19
Q

Preganglionic/presynaptic neurons originate in the brain and sacrum. How do they travel?

A

They don’t travel thru spinal nerves but thru the postganglions to the target or effector

20
Q

The electrical signal from the brain that crosses the synapse is transformed into a chemical called what

A

Neurotransmitter

21
Q

Where are neurotransmitters stored

A

In the vesicles of a neuron at the terminal

22
Q

What do neurotransmitters bind to on the postganglions?

A

Receptors

23
Q

Nerve action is either inhibitory or

A

Excitatory

24
Q

What process allows the neurotransmitter to be removed then allowing a second transmission

A

Reuptake process

25
Q

Reuptake happens at the axon terminal where _________ inactivate/remove the neurotransmitters

A

Enzymes

26
Q

What are the primary Nero transmitter chemicals

Other neurotransmitters are epinephrine dopamine serotonin and _____

A

Acetylcholine and norepinephrine

GAMA

27
Q

Where are receptors located

What type of muscle and glands are receptors located

A

In the dendrites of the postganglions

Smooth and cardiac muscle and glands

28
Q

What organs are not innervated by neurons

A

Sweat glands
Smooth muscle of hair follicles
Adrenal medulla
Blood vessels of the skin

29
Q

Adrenergic

A

Sympathetic

30
Q

Collinergic

A

Parasympathetic

31
Q

Rest and digest maintains homeostasis and slows______
Lowers____
Stimulates_____

A

Heart rate
Blood pressure
Gastrointestinal

32
Q

Fight or flight
Increases——
Increases——
Dialates—–

A

Heart rate
Blood flow
Bronchi

33
Q

Acetylcholine is released from the preganglionic terminal and excites the adrenergic/postganglions and initiates synthesis and release of—

A

Norepinephrine into the neuroeffector junction

34
Q

Catechilamines are adrenergic neurotransmitters.

What are they derived from?

A

Amid acid. tyrosine

35
Q

What r the principle amino acid catecholamines?

A

EPI
NE
Dopamine

36
Q

What do cholinergic / nerve fibers synthesize

A

ACh

37
Q

Nerve fibers that secrete NE are called what

A

Adrenergic