Atriopeptin
any of several peptide hormones that are released by the atria of the heart in response to an abnormal increase in blood volume and that modulate blood pressure and the excretion of sodium, pot-ssium, and water.
abbreviation: anf.
atrial natriuretic factor n.
a peptide hormone released from cardiac atrial tissue that causes increased elimination of sodium by the kidney.
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- Atrioseptopexy
atrioseptopexy atrioseptopexy a·tri·o·sep·to·pex·y (ā’trē-ō-sěp’tə-pěk’sē) n. surgical repair of an atrial septal defect.
- Atrioseptoplasty
atrioseptoplasty atrioseptoplasty a·tri·o·sep·to·plas·ty (ā’trē-ō-sěp’tə-plās’tē) n. repair of an atrial septal defect by plastic surgery.
- Atrioseptostomy
atrioseptostomy atrioseptostomy a·tri·o·sep·tos·to·my (ā’trē-ō-sěp-tŏs’tə-mē) n. the surgical establishment of a communication between the atria of the heart.
- Atrioventricular
of or relating to the atria and ventricles of the heart. abbreviation: av, a-v. adjective (anatomy) of, relating to, or affecting both the atria and the ventricles of the heart: atrioventricular disease atrioventricular a·tri·o·ven·tric·u·lar (ā’trē-ō-věn-trĭk’yə-lər) adj. abbr. a-v of or relating to the atria and the ventricles of the heart.
- Atrioventricular block
atrioventricular block atrioventricular block n. impairment of the normal conduction of impulses between the atria and the ventricles.