Dictionary > Atrial natriuretic hormone

Atrial natriuretic hormone

Definition
noun
A peptide hormone released by the atrial heart muscle cells in response to atrial distention, hypertension, and hypervolemia. It is a potent vasodilator and contributes in the development of natriuresis. It functions in the homeostatic regulation of body water, sodium, potassium, and fat to lower blood pressure.
Synonym(s):

  • atrial natriuretic peptide (ANP)
  • atrial natriuretic factor (ANF)
  • atriopeptin

Compare:

  • Brain natriuretic peptide


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