15.1 & 15.2

Question 1

the nervous system is mainly divided into the ___ and ___ nervous systems

Answer 1

central

peripheral

Question 2

the ____ nervous system accelerates heart rate, constricts blood vessels, and raises blood pressure

Answer 2

sympathetic

Question 3

the ____ nervous system slows heart rate, increases intestinal and glandular activity, and relaxes muscles

Answer 3

parasympathetic

Question 4

a nerve cell that sends and receives electrical signals throughout the body is known as

Answer 4

neuron

Question 5

a junction across which a nerve impulse passes is known as a

Answer 5

synapse

Question 6

in the sympathetic nervous system, the major neurotransmitter released by the postganglionic neuron is

Answer 6

norepinephrine

Question 7

neurons that release acetylcholine are termed _____

Answer 7

cholinergic

Question 8

the major neurotransmitter released by the postganglionic sympathetic neuron is

Answer 8

norepinephrine

Question 9

parasympathetic preganglionic neurons release which of the following neurotransmitters

Answer 9

acetylcholine

Question 10

neurotransmitter released from the parasympathetic postganglionic neurons

Answer 10

acetylcholine

Question 11

effect of the sympathetic nervous system on the heart

Answer 11

increases heart rate

Question 12

catecholamine is a chemical compound derived from the amino acid called

Answer 12

tyrosine

Question 13

____ is released from the adrenal medulla

Answer 13

epinephrine

Question 14

“fight-or-flight” response has been used to describe activation of the _____ nervous system during emergencies

Answer 14

sympathetic

Question 15

alpha-adrenergic receptors are found in vascular smooth muscle and cause

Answer 15

vasoconstriction

Question 16

Beta 2 receptors can produce ____ of bronchiolar smooth muscle

Answer 16

vasodilation

Question 17

increase in heart rate and force of contraction

Answer 17

B1

Question 18

vasodilation

Answer 18

B2

Question 19

relaxation of bronchiolar smooth muscle

Answer 19

B2

Question 20

receptors to which adrenergic agonists bind are termed _____, which means “related to nerves that release _____ and _____”

Answer 20

adrenergic
norepinephrine
epinephrine

Question 21

agents that bind to cholinergic receptors and do not cause any effect are known as

Answer 21

antagonist

Question 22

pupil dilation

Answer 22

A1

Question 23

stimulation of sweat glands

Answer 23

A1

Question 24

decrease in systolic BP

Answer 24

A2