The systolic part of the heart (cardiac) cycle is when the heart muscle contracts and the heart chambers pump blood out to the lungs and the rest of the body.
Primary Medical ReviewerRakesh K. Pai, MD, FACC - Cardiology, Electrophysiology
Specialist Medical ReviewerStephen Fort, MD, MRCP, FRCPC - Interventional Cardiology
Current as ofMarch 12, 2014
WebMD Medical Reference from Healthwise