Lecture 23

Question 1

this senses blood pressure and is located in the major systemic arteries

Answer 1

baroreceptor reflex

Question 2

cell bodies located in the CNS, axons myelinated, NT is ACh

Answer 2

preganglionic neuron

Question 3

cell bodies located in the peripheral ganglia, axons not myelinated, NT is ACh in para and Norepi in symp

Answer 3

postganglionic neuron

Question 4

cel body of each sympathetic pregang. neuron lies in the ______ horn of the spinal cord

Answer 4

interomediolateral

Question 5

all preganglionic neurons are

Answer 5

cholinergic

Question 6

these fibers pass through the gray rami, are type C, make up 8% of the fibers in the average nerve

Answer 6

postgang. symp. fibers

Question 7

what are the functions of cervical/thoracic symp. chain

Answer 7

coronary artery dilation, increase heart rate, bronchodilation

Question 8

these are composed of pregang. fibers, supply abdominal viscera, synapse in prevertebral ganglia, all are cholinergic

Answer 8

splanchnic nerves

Question 9

this splanchnic nerve is T5-T9

Answer 9

greater

Question 10

this splnchnic nerve is T10-T11

Answer 10

lesser

Question 11

this splanchnic nerve is T12

Answer 11

least

Question 12

this splanchnic nerve is L1-L2

Answer 12

lumbar

Question 13

vasoconstriction, iris dilation, intestinal relaxation, bladder sphincter contraction are all associated with which receptor

Answer 13

alpha

Question 14

cardioacceleration, increased myocardial strength and lipolysis are charach. of what receptor

Answer 14

beta1

Question 15

vasodilation, intestinal and uterus relaxation, bronchodilation, and glycogenolysis are charach. of what receptors

Answer 15

beta2

Question 16

thermogenesis is charach. of what receptor

Answer 16

beta3

Question 17

blocks synthesis and storage of norepinephrine

Answer 17

reserpine

Question 18

blocks sympathetic beta1 and beta2 receptors

Answer 18

propranolol

Question 19

blocks mostly sympathetic beta1 receptors

Answer 19

metoprolol

Question 20

fatigue, hypotension, bradycardia, and others are side effects of what

Answer 20

beta blockers

Question 21

this is stimulated by the sympathetic system and secretes 80% epi and 20% norepinephrine

Answer 21

adrenal medulla

Question 22

epi/norepi only lasts seconds when secreted by neuron, when secreted into the blood remains active until destroyed by ___

Answer 22

COMT

Question 23

about 75% of all parasympathetic fibers are in the

Answer 23

vagus nerve (CN X)

Question 24

primary motor nerve to muscles of facial expression, innervates muscles in inner ear also carries sensation of taste from anterior 2/3 of tongue

Answer 24

facial nerve (CN VII)

Question 25

this nerve carries the general sensation of taste from posterior 1/3 of tongue, injury can result in impaired swallowing

Answer 25

glossopharyngeal nerve (CN IX)

Question 26

this nerve lowers heart rate, controls taste and saliva, promotes kidney function, controls fertility

Answer 26

vagus nerve (CN X)

Question 27

IBS, anxiety, depression, trouble swallowing, migraines are all related to what

Answer 27

vagus nerve dysfunction