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epinephrine

epinephrine Epinephrine is a hormone released by the adrenal medulla that activates both major adrenergic receptor systems.

Epinephrine is a hormone released by the adrenal medulla that activates both major adrenergic receptor systems. It boosts cardiac activity, tightens blood vessels in much of the body, relaxes the digestive tract, and opens the airways and blood vessels supplying the brain.

Also see

Sources

Drafting source: U.S. National Library of Medicine. Medical Subject Headings (MeSH), 2026 descriptor edition. “Epinephrine” (D004837).
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Cite this entry

PsychTerms (psychterms.org), CC BY 4.0, version 1. “epinephrine.” Development preview.

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