Pharm Receptor Actions Flashcards
Increased vascular smooth muscle contraction
alpha 1
Increased pupillary dilator muscle contraction (mydriasis)
Alpha 1
Increased intestinal and bladder sphincter muscle contraction
Alpha 1
Decreased sympathetic outflow
Alpha 2
Decreased insulin release
Alpha 2
Decreased lipolysis
Alpha 2
Increased platelet aggregation
Alpha 2
Decreased aqueous humor production
Alpha 2
Increased heart rate and contractility
Beta 1
Increased renin release
Beta 1
Increased lipolysis
Beta 1
Vasodilation and bronchodilation
Beta 2
Increased insulin release and lipolysis
Beta 2
Decreased uterine tone
Beta 2
Ciliary muscle relaxation and increased aqueous humor production
Beta 2
CNS, enteric nervous system
M1 (q)
Decreased heart rate and contractility of atria
M2 (i)
Increased exocrine gland secretion and gut peristalsis, increased bladder contraction, bronchoconstriction, increased pupillary sphincter muscle contraction (miosis), ciliary muscle contraction (accommodation)
M3 (q)
Relaxes venal vascular smooth muscle
D1 (s)
Modulates transmitter release, especially in brain
D2 (i)
Increased nasal and bronchial mucus production, increased vascular permeability, contraction of bronchioles, pruritus, pain
H1 (q)
Increased gastric acid secretion
H2 (s)
Increased vascular smooth muscle contraction
V1 (q)
Increased H2O permeability and reabsorption in collecting tubules of kidney
V2 (s)
