RECEPTOR SITES WITHIN THE BODY Flashcards
insulin restriction
glucagon secretion
inhibition of norepinephrine release
alpha-2
increased heart rate (chronotropic effect), increased myocardial contractility (inotropic effect), increased myocardial conduction (dromotropic effect), renin secretion for urinary retention
Beta-1 receptor
bronchus and bronchiole relaxation, insulin secretion, uterine relaxation, arterial dilation in certain key organs
Beta-2 receptor
vasodilation of renal and mesenteric arteries
dopaminergic receptor
present at neuromuscular junction, allowing ACh to stimulate muscle contraction
nicotinic receptor
present in the heart; activated by ACh to offset sympathetic stimulation, decreasing heart rate, contractility, and electrical conduction velocity
muscarinic-2
increased heart rate
chronotropic effect
increased myocardial contractility
inotropic effect
increased myocardial conduction
dromotropic effect
chronotropic effect
increased heart rate
inotropic effect
increased myocardial contractility
dromotropic effect
increased myocardial conduction
dromotropic effect
increased myocardial conduction
vasoconstriction of arteries and veins
alpha-1 receptor