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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.
Last Revised: April 26, 2012
Author: Healthwise Staff
Medical Review: Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology & Stephen Fort, MD, MRCP, FRCPC - Interventional Cardiology
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