G-Protein Linked 2nd Messengers Flashcards
(14 cards)
1
Q
Alpha1
A
Q
Increase vascular smooth muscle contraction
Increase pupillary dilation (mydriasis)
Increase intestinal & bladder sphincter contraction
2
Q
Alpha2
A
I Decrease sympathetic outflow Decrease insulin release Decrease lipolysis Increase platelet aggregation Decrease aqueous humor production
3
Q
Beta1
A
S
Increase HR & contractility
Increase renin release
Increase lipolysis
4
Q
Beta2
A
S Vasodilation, bronchodilation Decrease uterine tone Increase lipolysis Increase insulin release Increase aqueous humor production Relax ciliary muscles
5
Q
Beta3
A
S
Increase thermogenesis in skeletal muscle
Increase bladder relaxation
Increase lipolysis
6
Q
M1
A
Q
Higher cognitive functioning
7
Q
M2
A
I
Decrease heart rate
Decrease contractility of atria
8
Q
M3
A
Q Increase exocrine gland secretions Increase bronchoconstriction Increase bladder contraction Increase gut peristalsis Increase insulin release Miosis & accommodation
9
Q
D1
A
S
Relaxes renal vascular smooth muscle
10
Q
D2
A
I
Brain receptor
Inhibits indirect pathway of striatum
11
Q
H1
A
Q [Allergies] Increase nasal & bronchial mucus production Increase vascular permeability Increase contraction of bronchioles Pruritis, pain
12
Q
H2
A
S
[GERD]
Increase gastric acid secretion
13
Q
V1
A
Q
Increase vascular smooth muscle contraction
14
Q
V2
A
S
[Vasopressin]
Increase H2O reabsorption at collecting ducts of kidney
