Biologically Active Substance
substance P
Subclass of:
Tachykinin
Definitions related to substance p:
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An eleven-amino acid neurotransmitter that appears in both the central and peripheral nervous systems. It is involved in transmission of PAIN, causes rapid contractions of the gastrointestinal smooth muscle, and modulates inflammatory and immune responses.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Neuropeptide composed of 11 amino acids, present in nerve cells scattered throughout the body and in special endocrine cells in the gut; increases the contractions of gastrointestinal smooth muscle, causes vasodilation, and appears to be a sensory neurotransmitter mediating pain, touch, and temperature.CRISP ThesaurusNational Institutes of Health, 2006
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