Chapter 15: Autonomic Nervous System

Question 1

2 Divisions of the autonomic nervous system

Answer 1

Sympathetic and PArasympathetic

Question 2

ANS provides innervation for _____ motor activity

Answer 2

Visceral

Question 3

Somatic nervous system supplies _____ skeletal muscles

Answer 3

Voluntary

Question 4

T or F: sympathetic and parasympathetic has 2 visceral motor neurons: a pre- and postganglionic neurons

Answer 4

True

Question 5

T or F: Dorsal root ganglion is sensory

Answer 5

True

Question 6

ANS _____ fiber is lightly myelinated where as the ____ fiber is unmyelinated

Answer 6

Preganglionic; postganglionic

Question 7

T or F: a somatic motor neuron is heavily myelinated

Answer 7

True

Question 8

T or F: myelination insulates the fiber and increases nerve conduction speed

Answer 8

True

Question 9

Division with the longest preganglionic fiber will send signals faster

Answer 9

True

- Parasympathetic

Question 10

Sympathetic NS name

Answer 10

Thoracolumbar

Question 11

Parasympathetic NS name

Answer 11

Craniosacral

Question 12

Fight, Flight, Fright

Answer 12

Sympathetic nervous system

Question 13

Rest and digest

Answer 13

Parasympathetic

Question 14

Neurotransmitter for ANS

Answer 14

Acetylcholine

- except sympathetic postganglionic nerve

Question 15

Neurotransmitter: sympathetic postganglionic nerve

Answer 15

Norepinephrine

Question 16

Parasympathetic NS ____ heart rate and blood pressure and _____ gut motility and digestion

Answer 16

decreases; increases

Question 17

T or F: Postganglionic nerve is essential within the walls of the organ innervated (very short length)

Answer 17

True

Question 18

Sympathetic nervous system has its preganglionic cell body in the _____ of the thoracolumbar spinal cord

Answer 18

lateral horn

Question 19

Sympathetic trunk ganglia run ____ to the spine

Answer 19

parallel

- provide the synapse for the Sympathetic NS preganglionic and postganglionic nerves

Question 20

Sympathetic trunk ganglia are connected to local spinal nerves by

Answer 20

white and gray ramus

Question 21

White rami have myelin and are therefore _____ nerve fibers

Answer 21

preganglionic

Question 22

Gray rami lack myelin and represent ______ nerve fibers

Answer 22

postganglionic

Question 23

Only the _____ NS supplies the following: sweat glands, hair raising muscles in skin, and smooth muscles of arteries and veins and the adrenal medulla

Answer 23

Sympathetic