congestion

(kon-jes'chi in) [L. congerere, to heap up.] The presence of an abnormal amount of blood in the ve els of a part, due either to increased afflux or to an obstruction to the return flow, ac'tive c, hyperemia, an increased flow of arterial blood to a part, func'tional c, hyperemia occurring during functional activity of an organ, hypostat'ic c, c. due to gravitation of venous blood to a dependent part in cases in which the circulation is feeble. pa 'ive c, c. due to partial stagnation of blood in the capillaries and venules in consequence of obstruction to the retiim flow, physio log'ical c, functional c.