adrenergic receptor

Medical Dictionary

adrenergic receptor n.
Any of several reactive components of effector tissues most of which are innervated by adrenergic postganglionic fibers of the sympathetic nervous system and are activated by norepinephrine, epinephrine, and various adrenergic drugs. They are classified as alpha-adrenergic receptors and beta-adrenergic receptors according to their response to various adreneregic activating and blocking agents. Also called adrenoreceptor.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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