alpha-adrenergic receptor


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alpha-adrenergic receptor

alpha-adrenergic receptor

alpha-adrenergic receptor

A site in autonomic nerve pathways responsive to the adrenergic agents norepinephrine and epinephrine In general, alpha-1 receptors produce excitatory responses, and alpha-2 receptors produce inhibitory responses.
See: beta-adrenergic receptor
See also: receptor

alpha-adrenergic receptor

receptors in effector organs which respond to epinephrine and norepinephrine; includes receptors in heart muscle which are responsible for increasing rate and force of cardiac contractions.
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