Autonomic Nervous System

Question 1

Where is the first neuron in the 2-neuron system found?

Answer 1

CNS

Question 2

Where is the second neuron in the 2-neuron system found?

Answer 2

PNS

Question 3

What is the ratio of fiber length for pre- and post-ganglionic fibers in the sympathetic nervous system?

Answer 3

short : long

Question 4

What is the ratio of fiber length for pre- and post-ganglionic fibers in the parasympathetic nervous system?

Answer 4

long : short

Question 5

What is the relationship between the sympathetic nervous system and para-sympathetic nervous system?

Answer 5

antagonistic

Question 6

Which system does not innervate external muscles?

Answer 6

parasympathetic nervous system

Question 7

What is the origin of the sympathetic NS?

Answer 7

thoracolumbar

Question 8

What is the origin of the parasympathetic NS?

Answer 8

craniosacral

Question 9

What are the spinal nerve levels of sympathetic NS?

Answer 9

T1-L3

Question 10

What are the spinal nerve levels of parasympathetic NS?

Answer 10

brainstem

S2, S3, S4

Question 11

What is the neurotransmitter of the sympathetic NS?

Answer 11

acetylcholine (sweat glands)

norepinephrine

Question 12

What is the neurotransmitter of the parasympathetic NS?

Answer 12

acetylcholine