Autonomic Nervous System

Question 1

what is the function of the autonomic NS?

Answer 1

functions outside of our conscious awareness

Question 2

the autonomic NS makes routine adjustments to

Answer 2

maintain homeostasis

Question 3

how does the autonomic NS maintain homeostasis

Answer 3

regulates body temperature and coordinated cardiovascular, respiratory, digestive, excretory, and reproductive functions

Question 4

subdivisions of the autonomic NS

Answer 4

parasympathetic

sympathetic

Question 5

sympathetic division activation results in

Answer 5

increased metabolism and alertness

Question 6

sympathetic

thoracic and lumbar nerves synapse in ganglia near ______ ______

Answer 6

spinal cord

Question 7

parasympathetic activation results in

Answer 7

energy conservation

Question 8

parasympathetic

synapses are located near ____ _____

Answer 8

target organ

Question 9

both divisions have 2 _____ neurons from the CNS to the _____ _____

Answer 9

efferent (motor), target organ

Question 10

ganglia

Answer 10

gray matter in the peripheral NS

Question 11

sympathetic

____ pre-ganglionic neuron and _____ post-ganglionic neurons

Answer 11

short, long

Question 12

parasympathetic

____ pre-ganglionic neuron and _____ post-ganglionic neurons

Answer 12

long, short

Question 13

sympathetic acts on

Answer 13

glands, cardiac muscle, smooth muscle in blood vessels

Question 14

parasympathetic acts on

Answer 14

glands, cardiac muscle, smooth muscle of the GI and respiratory tracts

Question 15

sympathetic

all pre-ganglionic fibers release _____, the effects are

Answer 15

ACh, stimulatory

Question 16

sympathetic

most postganglionic fibers release_____ effects are

Answer 16

norepinephrine, stimulatory or inhibitory (depending on the receptor on target)