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Alpha, Beta, M, D, H, V receptors
First Aid 2012 p263
13
Medical
01/16/2013

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Term
alpha-1
Definition
q
vasoconstriction, mydriasis (pupillary dilator muscle contraction), increased intestinal and bladder sphincter muscle contraction
Term
alpha-2
Definition
i
decrease sympathetic outflow, (decrease insulin release)
Term
beta-1
Definition
s
increase HR/contractility, (increase renin release, lipolysis)
Term
beta-2
Definition
s
vasodilation, bronchodilation, decrease uterine tone, (increase HR/contractility, lipolysis, insulin release)
Term
M1
Definition
q
CNS, enteric NS
Term
M2
Definition
i
decrease HR/contractility of atria
Term
M3
Definition
q
increased exocrine gland secretions (sweat, gastric acid), gut peristalsis, bladder contraction, miosis (pupillary sphincter muscle contraction), ciliary mucle contraction (accomodation), bronchoconstriction
Term
D1
Definition
s
relaxes renal vascular smooth muscle
Term
D2
Definition
i
modulates trasmitter release, esp in brain
Term
H1
Definition
q
increase nasal/bronchial mucus production, contraction of bronchioles, pruritus, pain
Term
H2
Definition
s
increase gastric acid secretion
Term
V1
Definition
q
increase vascular smooth muscle contraction
Term
V2
Definition
s
increase H2O permeability and absorption in collecting tubules of kidney