1. Receptors postulated to exist on nerve cell membranes of the sympathetic nervous system in order to explain the specificity of certain agents that affect only some sympathetic activities (such as vasoconstriction and relaxation of intestinal muscles and contraction of smooth muscles)
   - alpha receptor, alpha-adrenoceptor

Derived forms: alpha-adrenergic receptors

Type of: receptor

Part of: sympathetic nervous system

Encyclopedia: Alpha-adrenergic receptor

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