Receptors short answer

Question 1

Which receptor stimulates gluconeogenesis & glycogenolysis in the Liver

Answer 1

B2

Question 2

What receptor stimulates glycogenolysis in the liver

Answer 2

A1

Question 3

Which receptor stimulates insulin secretion in the pancreas

Answer 3

B2

Question 4

Which receptor inhibit insulin release in the pancreas

Answer 4

A2

Question 5

What receptor stimulates lipolysis in adipose

Answer 5

B3

Question 6

What receptor inhibit lipolysis in the adipose

Answer 6

A2

Question 7

What receptor stimulates glycogenolysis, gluconeogenisis in skm

Answer 7

B2

Question 8

A1
receptor
increases/decreases what
main physiological effect

Answer 8

Gq-increased intracellular calcium- vasoconstriction& mydriasis

Question 9

A2
receptor
increases/decreases what
main physiological effect

Answer 9

Gi-decreased camp, K efflux and decreased calcium, decreased norepi release(autoreceptor), decreased ACH, decreased heart rate,
decreased SNS=increased vagal tone, decreased NT release

Question 10

B1
receptor
increases/decreases what
main physiological effect

Answer 10

Gs-increased camp, increase calcium influx, increased heart conduction, rate, and contractility

Question 11

B2
receptor
increases/decreases what
main physiological effect

Answer 11

Gs-increased camp, increased pka, decreased MLCK, bronchodilation -vasodilation-inhibits release of inflammatory mediators

some B2 on myocardium SA node

Question 12

B3
receptor
increases/decreases what
main physiological effect

Answer 12

Gs-increased camp, increased pka, bladder detrusor relaxation

Question 13

D1

Answer 13

D1
Gs-decreased MLCK, renal vascular smooth muscle relaxation
vasodilation in kidney, intestine, heart

Question 14

D2

Answer 14

D2
“think A2”
Gi-decreased camp, K efflux and decreased calcium
presynaptic-decreased sympathetic release-decreased norepi release
post synaptic-vasoconstriction

Question 15

M3

Answer 15

Gq-increased calcium-PSNS activation-bronchoconstriction-BB Sludge

extra junctional M3 on bladder stimulated by NO-contract detrusor
extra junctional M3 vasodilation simulated by NO
NO relax smooth muscle relaxation, relaxes internal urethral, raises the Ol point and shoot

Question 16

M2

Answer 16

“The opposite B1” (negative Bancy)
Gi-decreased camp, K efflux and decreased calcium –decreased heart rate (sa and av) and contractility
-negative inotropic, dromotropic ,chronotropic effect on heart

Question 17

Which receptor increased renin?

Answer 17

B1

Question 18

Which receptor decreased uterine tone?

Answer 18

B2

Question 19

What does EPI stimulating B1 on cardiac muscle cause phosphorylation of? result in ?

Answer 19

Troponin 1, contraction

Question 20

Troponin 1 is absent in smooth muscle so what happens in smooth muscle in regards to EPI and B2?

Answer 20

PKA phosphorylation of MLCK, inhibits myosin function, relaxation

Question 21

Beta2 in the lung is

Answer 21

extra-junctional (hormone) no nerve

EPI

Question 22

Name two extra junctional receptors?

Answer 22

B2,B3

B2 is presynaptic myocardium

Question 23

what receptor(s) causes venoconstriction?

Answer 23

A1&A2

Question 24

What receptor causes arteriolar constriction?

Answer 24

A1

Question 25

Presynaptic A2 receptors cause ________while post synaptic causes___________.

Answer 25

vasodilation | constriction

Question 26

Why does presynaptic A2 cause vasoconstriction?

Answer 26

Inhibition of norepinephrine release

Question 27

B2 relaxes what 4 things?

Answer 27

blood vessels, tracheal and bronchial muscles, uterus

Question 28

What cause carbohydrate metabolism?

Answer 28

B2

Question 29

D2 acts like what other receptor?

Answer 29

A2

Question 30

D1 acts like what other receptor?

Answer 30

B2

Question 31

Adipose B1?

Answer 31

lipolysis

Question 32

What two receptors decrease renin secretion?

Answer 32

A1 D1

Question 33

What receptor increase ADH secretion?

Answer 33

B1

Question 34

Which presynaptic receptor stimulates NE release?

Answer 34

B2

Question 35

name adrenergic presynaptic receptors

Answer 35

A2, B2 (heart), D2

Question 36

Name adrenergic extra-junctional | found where?

Answer 36

a 2 and b 2 | vascular smooth muscle, platelets

Question 37

presynaptic b2 does what

Answer 37

stimulates norepi release

Question 38

presynaptic a2 does what

Answer 38

inhibits norepi release

Question 39

NE has a low affinity for these 2 receptors

Answer 39

b2 and b3

Question 40

cutaneous blood vessels are exclusively

Answer 40

a1