the criterion used for functional efficiency of myocardium and coronary vasculature is -- in addition to the usual evaluation of cardiac force and coronary flow in steady-state -- the reaction of the heart to perfusion pressure changes : abrupt increase of the perfusion pressure ( pp ) leads to an increase in cardiac force ( = heterometric autoregulation , ha ) and simultaneously to triggering of the myogenic autoregulation ( ma ) .
C0027061
myocardium
C0018787
cardiac