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14 Cards in this Set

  • Front
  • Back
constriction of blood vessels, inhibits insulin secretion
alpha 1
inhibition of NE release (presynaptically in the periphery)
alpha 2
increased HR, contractility, conductance
beta 1
dilation of BVs, bronchioles, glycogenolysis, gluconeogenesis, insulin secretion, uterine relaxation
beta 2
enhancement of lipolysis in adipose tissue
beta 3
dilation of blood vessels
DA1
inhibition of NE release (negative feedback)
DA2
Pure alpha agonists
phenylephrine and methoxamine
Pure beta agonists
dobutamine, isoproterenol
Alpha > beta agonists
norepinephrine
Alpha = beta
Ephedrine (direct and indirect effects), dopamine (dose dependent, 10 - 20 mcg/kg/min)
Beta > alpha
epinephrine, dopamine (dose dependent = 3 - 10 mcg/kg/min, B2, = B1)
DA1 agonist
Dopamine infusion @ < 3 mcg/kg/min = renal, mesenteric, and coronary vasodilation --> renal blood flow, sodium excretion, GFR, and UOP
Dopamine infusion > 20 mcg/kg/min
stimulates primarily alpha 1 receptors