Chapter 14: The Autonomic Nervous System

Question 1

dual innervation

Answer 1

both divisions innervrate many of the same organs where their actions antagonize one another

Question 2

autonomic tone

Answer 2

neither division is ever completely shut down

Question 3

preganglionic

Answer 3

initial efferent neuron that lies in the CNS , releases Ach

Question 4

post ganglionic

Answer 4

resides in the PNS releasing Norepinephrine and epinephrine

Question 5

sympathetic nervous system

Answer 5

short preganglion and long post ganglion

thoraiccolumbar

Question 6

parasympathetic nervous system

Answer 6

long preganglion and short post ganglion

craniosacral

Question 7

ANS

Answer 7

visceral nervous system (involuntary movements)

Question 8

somatic nervous system

Answer 8

skeletal muscle ) voluntary

Question 9

Autonomic tone is an important aspect of ANS function because it

Answer 9

allows ANS neurons to increase or decrease their activity, providing a range of control options.

Question 10

If the receptor on the postsynaptic membrane binds norepinephrine, the synapse is called

Answer 10

adrenergic

Question 11

The suprarenal medullae secrete

Answer 11

both epinephrine and norepinephrine

Question 12

Neurons that release acetylcholine as a neurotransmitter are called

Answer 12

cholinergic

Question 13

Visceral reflex arcs can bypass CNS neurons in ________ reflexes.

Answer 13

short

Question 14

Control of the diameter of the respiratory passages depends upon

Answer 14

both parasympathetic and sympathetic levels of stimulation.

Question 15

Which of the following is an example of a visceral reflex?

Answer 15

defecation reflex