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Preferred Term:

alpha adrenergic receptors

Definition:
One of the two major pharmacological subdivisions of adrenergic receptors that were originally defined by the relative potencies of various adrenergic compounds. The alpha receptors were initially described as excitatory receptors that post-junctionally stimulate smooth muscle contraction. However, further analysis has revealed a more complex picture involving several alpha receptor subtypes and their involvement in feedback regulation.
Concept Schemes:
NALT Full
Broader Concept:
Entry Terms:
  • adrenergic alpha-receptors
  • alpha-adrenoceptors
  • alpha-adrenergic receptors
URI:
https://lod.nal.usda.gov/nalt/255340
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RDF/XMLCreated 2015-06-09, last modified 2017-07-06