ch 14

Question 1

Visceral reflex arcs differ from somatic in that____.

Answer 1

visceral arcs involve two motor neurons

Question 2

The secretion of the adrenal medulla act to supplement the effects of______.

Answer 2

Sympathetic stimulation

Question 3

The smooth muscle of the digestive viscera is served largely by the ______

Answer 3

tenth cranial nerve

Question 4

The parasympathetic ganglion that serves the eye is the_____.

Answer 4

ciliary ganglion

Question 5

Raynaud’s disease

Answer 5

is characterized by exaggerated vasoconstriction in the extremities

Question 6

Which of the following does not describe the ANS?

Answer 6

a system of motor neurons that innervates all muscle cells

Question 7

Sympathetic responses generally are widespread because____.

Answer 7

NE and epinephrine are secreted into the blood as part of the sympathetic response

Question 8

Sympathetic division stimulation causes_______.

Answer 8

increased blood glucose, decreased GI peristalsis, and increased heart rate and blood pressure

Question 9

Which is a uniquely sympathetic function?

Answer 9

regulation of body temperatures

Question 10

autonomic dysreflexia ______.

Answer 10

involves uncontrolled activation of autonomic neurons

Question 11

Emotions influence autonomic reactions primarily through integration in the _____.

Answer 11

hypothalamus

Question 12

Control of temperature, endocrine activity, and thirst are functions associated with the_______.

Answer 12

hyopthalamus

Question 13

sympathetic nerves may leave the spinal cord at which vertebra?

Answer 13

first thoracic

Question 14

Which of the following appears to exert the most direct influence over autonomic function?

Answer 14

reticular formation

Question 15

Preparing the body for the “fight-or-flight” response is the role of the_______.

Answer 15

sympathetic nervous system

Question 16

Where would you not find an autonomic ganglion?

Answer 16

in the armpit

Question 17

where would you not find a cholinergenic nicotinic receptor?

Answer 17

all parasympathetic target organs

Question 18

autonomic ganglia contain_____.

Answer 18

the cell bodies of motor neurons

Question 19

Which of the following adrenergic neurotransmitter receptors plays the major role in heart activity?

Answer 19

beta 1

Question 20

Once a sympathetic preganglionic axon reaches a trunk ganglion, it can do all but which one of the following?

Answer 20

synapse with a parasympathetic neuron in the same trunk ganglion

Question 21

The parasympathetic fibers of the ______ nerves innervate smooth muscles of the eye that cause the lenses to bulge to accommodate close vision.

Answer 21

oculomotor

Question 22

Which of the following is not a plexus of the vagus nerve?

Answer 22

celiac

Question 23

fibers that enter and leave the sympathetic chain without synapsing form structures are called______.

Answer 23

splanchnic nerves

Question 24

parasympathetic functions include______.

Answer 24

lens accommodation for close vision

Question 25

the parasympathetic tone______.

Answer 25

determines normal activity of the urinary tract