Autonomic Nervous System

Question 0

What ans is

Answer 0

Autonomous system of involuntary control if vital functions for life
Regulated by hypothalamus

Question 1

Autonomic nervous system divided into

Answer 1

Enteric- digestion
Sympathetic- fight/flight
Parasympathetic- calm:regroup

Question 2

How ANS works

Answer 2

Sensory input and motor output to visceral organs, glands
Using an extra ganglion (dig from direct ganglion)
Which is a group of nerve cell

Question 3

Ganglion in ANS

Answer 3

Call then peripheral(or autonomic) ganglia (not the same as the dorsal root ganglia)

Question 4

What does ANS regulate

Answer 4

Heart 
Lungs
Blood vessels
Digestive organs
Reproductive organs 
Urigenital system

Question 5

And regulate through

Answer 5

Involuntary control
Not conscious
Does it’s own thing

Question 6

What ANS do

Answer 6

Maintain homeostasis - can’t always be panicked or calm

Promote survival in times of extreme anxiety, stress

Question 7

3 sub divisions of ANS (within the pns)

Answer 7

Enteric
Sympathetic
Parasympathetic

Question 8

Enteric

Answer 8

Works in conjunction with CNS

Muscle movement to help digestion

Question 9

Sympa and para work in tandem

Answer 9

Complimenting each other’s function

To maintain homeostasis

Question 10

Sympathetic

Answer 10

Fight/flight

Spends energy

Question 11

Para

Answer 11

Rest/restore

Conserved energy

Question 12

Enteric comprised of

Answer 12

Sensory, motor, and interneurons
Comprehend if millions of neurons
Outside cns system with most neurons

Question 13

Enteric Innervate

Answer 13

Smooth muscle of GI system

Located in walls of stomach, esophagus, small intestine, pancreas, gall bladder, colon

Question 14

How enteric function

Answer 14

Can function as it’s own circuit via the ANS

Can also interact with cns to relay pain, discomfort

Question 15

Enteric is capable of

Answer 15

Detection of muscle tension
Relaxation and/or contraction of muscle tension and peristalsis
Secretion of enzymes for digestion
Regulation of fluid secretion between gut as other tissue

Question 16

Sympathetic functions

Answer 16

Acceleration/altering system
Fight/flight
Engages/prepares body to respond
Almost always excitatory

Question 17

What sympathetic does

Answer 17

Accelerates heart rate
Constrict blood vessels
Elevate BP
Redistribute blood to brain, heart
Dilate pupils
Dilates bronchial passages
Decrease peristalsis
Closes sphincters

Question 18

Sympathetic activated by

Answer 18

Posterior/lateral hypothalamus

Norepinephrine

Question 19

Parasympathetic functions

Answer 19

Rest/recover
Mostly inhibitory pathway
Down-regulate function

Question 20

Parasympathetic does what

Answer 20

Restore visceral bodily function 
After sympathetic activation
Restore homeostasis
Dominant during sleep and relaxation
Decrease heart rate
Normal respiration
Increase peristalsis pens sphincters

Question 21

Para activated by

Answer 21

Hypothalamus

Actylcholine as an inhibitor

Question 22

Para and sympa

Answer 22

Work in balance to maintain survival expenditure energy when necessary and conserving energy when required

Question 23

Most organs are Innervate by both para and sympa but some only one

Answer 23

Sympathetic- sweat glands, hair follicles, kidneys, blood vessels
Para- lacrimal tear gland

Question 24

Sympa

Answer 24

Extra peripheral ganglia close to spinal column Innervate up to 20 different glands muscles and organs

Question 25

Para

Answer 25

Extra ganglia faryer away from cns and extra ganglia Innervate 1-3 glands
Not immediate
Only coming out if top of cns brainstem or vey bottom