Autonomic NS

Question 1

What type of control is the ANS

Answer 1

Visceral motor (involuntary)

Question 2

What are the unique characteristics of a somatic motor neuron (3)

Answer 2

one long axon
well myelinated
conduct impulses rapidly

Question 3

What are the unique characteristics of an autonomic motor neuron (3)

Answer 3

chain of two motor neurons
—-preganglionic
—-postganglionic
preganglionic is myelinated
conduction is slower

Question 4

What are the four differences between the parasympathetic and sympathetic (4)

Answer 4

1) Issues from different regions of the CNS
2) Length of postganglionic and preganglionic fibers
3) Branching of fibers
4) Neurotransmitter released by postganglionic axons

Question 5

What body division does the sympathetic NS come from

Answer 5

thoracolumbar

Question 6

What body division does the parasympathetic NS come from

Answer 6

craniosacral

Question 7

which fiber is longer in the sympathetic

Answer 7

longer postganglionic fiber

Question 8

which fiber is long in the parasympathetic

Answer 8

longer preganglionic fiber

Question 9

What kind of branching are the fibers in the sympathetic

Answer 9

highly branched because they influence many organs at once

Question 10

What kind of branching are the fibers in the parasympathetic

Answer 10

few branches for a localized effect