Library / English Dictionary

    ALPHA RECEPTOR

    Pronunciation (US): Play  (GB): Play

     I. (noun) 

    Sense 1

    Meaning:

    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)play

    Synonyms:

    alpha-adrenergic receptor; alpha-adrenoceptor; alpha receptor

    Classified under:

    Nouns denoting body parts

    Hypernyms ("alpha receptor" is a kind of...):

    receptor (a cellular structure that is postulated to exist in order to mediate between a chemical agent that acts on nervous tissue and the physiological response)

    Holonyms ("alpha receptor" is a part of...):

    sympathetic nervous system (originates in the thoracic regions of the spinal cord; opposes physiological effects of the parasympathetic: reduces digestive secretions; speeds the heart; contracts blood vessels)

    Credits


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