ANS

Question 1

What are the 3 components of the autonomic nervous system?

Answer 1

1. Sympathetics
2. Parasympathetics
3. Enteric nervous system

Question 2

All ANS preganglionic fiber are ___________, only sympathetic portion have _____________ (post ganglionic) fibers.

Answer 2

1. Cholinergic = release ACH
2. Adrenergic = release Epinephrine & norepinephrine

Question 3

What spinal levels do the sympathetics exist?

Answer 3

T1 - L1/L2

within the interomedial cell column aka sympathetic chain

Question 4

What ANS system is associated with fight or flight?

Answer 4

Sympathetics

Question 5

Eyes dialating and tachycardia would be associated with which ANS component?

Answer 5

sympathetics

Question 6

What major factor of the body do the sympathetics control and through what 3 ways?

Answer 6

TEMPERATURE:

1. Vasomotor
2. Pilomotor
3. Sudomotor

Question 7

What is vasomotor, pilomotor, and sudomotor?

Answer 7

1. Vasomotor = shunt blood to large muscle
2. Pilomotor = hair on end
3. Sudomotor = sweat

Question 8

Do sympathetics have a:

long or short preganglionic nerve

and a

long or short postganglionic nerve?

Answer 8

Short preganglionic releasing ACH

and a

Long postganglionic nerve releasing Epinephrine & Norepinephrine

Question 9

Does epinephrine use alpha or beta catecholamines?

Answer 9

BOTH

Question 10

What does epinephrine do in the sympathetics?

Answer 10

bronchoconstriction exclusively in fight & flight

Question 11

Does norepinephrine use alph or beta catecholamines?

Answer 11

ALPHA only

Question 12

What does norepinephrine do?

Answer 12

dec. threshold, increases AP, and increases pain

Question 13

Supra - renal glands have ___________ cells that synthesize catacholamines for sympathetic post ganglionic fibers.

Answer 13

Chromaffin

Question 14

Alpha catecholamines _______ smooth muscle.

Answer 14

excite

Question 15

Alpha catacholamines are norepinephrine or epinephrine?

Answer 15

ALPHA = nor. and epinephrine

Question 16

Beta catecholamines ________ smooth muscle?

Answer 16

inhibit

Question 17

Beta catecholamines include epinephrine or norepinephrine?

Answer 17

BETA = Epinephrine only

Question 18

The Parasympathetics include what nerves?

Answer 18

CN: 3,7,9,10

&

S2-4 bowel and bladder

Question 19

The craino-sacral component of the ANS refers to what?

Answer 19

parasympathetics CN 3,7,9,10 & S2-4

Question 20

Increased saliva, bradycardia, increased GI enzymes, dec. heart rate, lung and respiration, stores, conserves, and replenishes body energy refers to what component of the ANS?

Answer 20

Parasympathetics

Question 21

Do the parasympathetics have a:

short or long preganglionic nerve

and a

short or long postganglionic nerve?

Answer 21

Parasympathetics have a

long preganglionic nerve releasing ACH

and a

short postganglionic nerve releasing ACH

*(only a long postganglionic nerve of the sympathetics can release epinephrine and norepinephrine, every other gaglionic nerve releases ACH)

Question 22

What is referred to as the gut brain?

Answer 22

enteric system

Question 23

Is the enteric nervous system innervated by the CNS?

Answer 23

NO

Question 24

T/F: the Enteric NS can be influenced by a few nerves of the sympatheics and parasympathetics?

Answer 24

True: but can act autonomously

Question 25

What neurotransmitter does the enteric system use?

Answer 25

VIP

Question 26

The myenteric and submucosal plexuses are included in what component of the ANS?

Answer 26

Enteric nervous system

Question 27

T/F: In times of great stress, sympatheticotonia can override the enteric system and decrease GI function?

Answer 27

True causing ulcers

Question 28

Aganglionic = ?

Answer 28

hirschsprung's disease