vis-a-tergo
vis-a-tergo
Cardiology A term referring to the force driving the venous return of peripheral blood, which is supplied by the left ventricle; by the time blood has passed through the capillaries, the blood pressure, or vis-a-tergo, is 15 mm HgMcGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.