A&p I--Autonomic Nervous System

Front 1

What does the autonomic nervous system innervate?

Back 1

Glands, Smooth muscle, Cardiac muscle

Front 2

Differences between autonomic nervous system and somatic nervous system?

Back 2

Somatic= innervates skeletal muscle

Autonomic=innervates smooth muscle, cardiac muscle, glands

SNS has one lower motor neuron

ANS has two lower motor neurons

Front 3

Is the ANS sensory or motor?

Back 3

Motor

Front 4

What are the two divisions of the autonomic nervous system?

Back 4

Parasympathetic and sympathetic

Front 5

What is meant by "dual innervation?"

Back 5

Two systems supply one organ (both sympathetic and parasympathetic)

Front 6

Which part of the brain controls ANS?

Back 6

The hypothalamus

Front 7

Where does the sympathetic nervous system start in the spinal cord?

Back 7

T1-L2 (thoracic to lumbar)

Front 8

Where does the parasympathetic nervous system start in the spinal cord?

Back 8

Cranial nerves in the brain (brain stem) and pelvic nerves (Sacral region)

Front 9

Where are the ganglia of the SNS located? PSNS?

Back 9

Sympathetic trunk

Front 10

What are the neurotransmitters used by both SNS and PSNS?

Back 10

Adrenaline/epinephrine and acetylcholine

Front 11

Is the preganglionic neuron of the SNS short or long?

Back 11

Short then long

Front 12

postganglionic neurons of Parasympathetic nervous system short or long?

Back 12

Long then short

Front 13

What is the pathway for sympathetic nervous system?

Back 13

Short preganglionic neuron--> Ganglion--> Long postganglionic neuron--> end organ

Front 14

Where is norepinephrine released in symp nervous system, and what is the second neuron called that releases it?

Back 14

Released at end organ, neuron called adrenergic.

Front 15

What is receptor for acetylcholine at synapse in sympathetic nervous system?

Back 15

Nicotinic

Front 16

What is receptor for Norepinephrine in sympathetic nervous system?

Back 16

Alpha or beta receptor

Front 17

What causes adrenaline release in blood?

Back 17

Preganglionic neurons stimulate adrenal medullae and release adrenaline into blood.

Front 18

Pathway in parasympathetic nervous system?

Back 18

lone preganglionic neuron--> ganglion--> short post ganglionic neuron--> end organ

Front 19

Where is acetylcholine released in parasympathetic nervous system?

Back 19

At terminal ganglion and end organ--first neuron releasing actly called cholinergic, second neuron releasing actyl, also called cholinergic.

Front 20

What is the receptor for acetylcholine in parasympathetic nervous system? (first neuron) Receptor for the second neuron that releases acetylcholine?

Back 20

Nicotinic receptor/ Muscarinic receptor

Front 21

Which system is referred to as "fight or flight?" Why?

Back 21

Sympathetic nervous system--makes body ready for emergencies.

Front 22

Which system is referred to as "rest and digest?"

Back 22

Parasympathetic---most active when body is relaxed.

Front 23

What are examples of autonomic reflexes?

Back 23

Pupillary, urinary, defecation

Front 24

What is a sympathomietric drug? Parasympathomietric drug?

Back 24

One that imitates the sympathetic nervous system/parasympathetic nervous system.

Front 25

What is a sympatholytic/parasympatholytic drug?

Back 25

Antagonistic to sympathetic/parasympathetic nervous system

Front 26

When would a beta blocker be given?

Back 26

To slow heart beat if person has very rapid heart rate.

Front 27

What is a beta blocker?

Back 27

Drugs that block the receptors of the symp nervous system.

Front 28

What effect would sympathetic nervous system have on skin blood vessels? Parasympathetic?

Back 28

Constrict them/Dilate them