beta-receptor
noun Date: 1948 any of a group of receptors that are present on cell surfaces of some effector organs and tissues innervated by the sympathetic nervous system and that mediate certain physiological responses (as vasodilation, relaxation of bronchial and uterine smooth muscle, and increased heart rate) when bound by specific adrenergic agents — compare alpha-receptor

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • beta receptor — n. a receptor, found on the surface of some cells of the sympathetic nervous system, that is stimulated by certain adrenergic substances: such stimulation results in certain physiological responses, such as acceleration of the action of the heart …   English World dictionary

  • beta receptor — Biochem., Physiol. a site on a cell, as of the heart, that, upon interaction with epinephrine or norepinephrine, controls heartbeat and heart contractability, vasodilation, smooth muscle inhibition, and other physiological processes. Also, beta… …   Universalium

  • beta-receptor — be·ta re·cep·tor ri .sep tər n any of a group of receptors that are present on cell surfaces of some effector organs and tissues innervated by the sympathetic nervous system and that mediate certain physiological responses (as vasodilation,… …   Medical dictionary

  • beta receptor — noun 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 vasodilation and increased heart beat) • Syn …   Useful english dictionary

  • beta-receptor — be·ta re·cep·tor (bā tə rĭ sĕpʹtər, bē ) n. A site in the autonomic nervous system in which inhibitory responses occur when adrenergic agents, such as norepinephrine and epinephrine, are released. Activation of beta receptors causes various… …   Universalium

  • beta-receptor — ¦ ̷ ̷  ̷ ̷  ̷ ̷ ¦ ̷ ̷  ̷ ̷ noun : any of a group of receptors that are postulated to exist on cell surfaces of some effector organs and of tissues innervated by the sympathetic nervous system in order to explain the specificity of certain… …   Useful english dictionary

  • beta receptor — be′ta recep tor or be′ta recep tor, n. biochem. pha phl a site on a cell, as of the heart, that upon interaction with epinephrine or norepinephrine controls heartbeat and heart contractibility, vasodilation, and other physiological processes •… …   From formal English to slang

  • TGF beta receptor 2 — Transforming growth factor, beta receptor II (70/80kDa) PDB rendering based on 1ktz …   Wikipedia

  • Lymphotoxin beta receptor — is a receptor for lymphotoxin. PBB Summary section title = summary text = The protein encoded by this gene is a member of the tumor necrosis factor (TNF) family of receptors. It is expressed on the surface of most cell types, including cells of… …   Wikipedia

  • TGF beta receptor 1 — Transforming growth factor, beta receptor I (activin A receptor type II like kinase, 53kDa) is a TGF beta receptor. TGFBR1 is its human gene. PBB Summary section title = summary text = The protein encoded by this gene forms a heteromeric complex… …   Wikipedia

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