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Flashcards in Autonomic Nervous System Deck (38)
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CNS

Central nervous system

1

What does the CNS consist of

The brain in the spine

2

PNS

Peripheral nervous system

3

Somatic is voluntary and innervates what

Skeletal muscles

4

The autonomic nervous system is in voluntary and innervates what

Digestion and circulation

5

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

Sympathetic is fight or flight
Parasympathetic is rest and digest

6

The unit of cellular structure of the CNS

Neuron

7

Electrical influx or action potential

How a neuron communicates

8

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

Cell body or soma

9

Where are the receptors located

In the dendrites

10

Axon is know as the _____ part

Sending

11

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

One direction

12

Where do axons terminate

Axon terminal / vesicles

13

How do neurons communicate

By way of the synaptic cleft

14

The target is also know as

Effector

15

If the synapse is outside the CNS what is it called

Ganglion

16

Where do neurons of the sympathetic division originate

Thoracolumbar portion of spine

17

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

Presynapse

18

Postganglionic or post synapse neurons extend where

Organs

19

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

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

20

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

Neurotransmitter

21

Where are neurotransmitters stored

In the vesicles of a neuron at the terminal

22

What do neurotransmitters bind to on the postganglions?

Receptors

23

Nerve action is either inhibitory or

Excitatory

24

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

Reuptake process

25

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

Enzymes

26

What are the primary Nero transmitter chemicals

Other neurotransmitters are epinephrine dopamine serotonin and _____

Acetylcholine and norepinephrine

GAMA

27

Where are receptors located

What type of muscle and glands are receptors located

In the dendrites of the postganglions

Smooth and cardiac muscle and glands

28

What organs are not innervated by neurons

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

29

Adrenergic

Sympathetic

30

Collinergic

Parasympathetic

31

Rest and digest maintains homeostasis and slows______
Lowers____
Stimulates_____

Heart rate
Blood pressure
Gastrointestinal

32

Fight or flight
Increases------
Increases------
Dialates-----

Heart rate
Blood flow
Bronchi

33

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

Norepinephrine into the neuroeffector junction

34

Catechilamines are adrenergic neurotransmitters.
What are they derived from?

Amid acid. tyrosine

35

What r the principle amino acid catecholamines?

EPI
NE
Dopamine

36

What do cholinergic / nerve fibers synthesize

ACh

37

Nerve fibers that secrete NE are called what

Adrenergic