Explain the cardiac cycle and factors affecting cardiac output

The cardiac cycle is a sequence of events that occur in the heart during one heartbeat. It consists of two main phases: systole (contraction) and diastole (relaxation). During systole, the ________ _____ ____ _______ __________ _______ _________.
________ ______ _____ ________ ______ _____.
_____ __________ __________ _________ ___ _______ ________ _____ ________ ______ __________.
_________ ________ _____ ______ ______ _________ ____ _______ ____ __________ _________ _______.
___ ___ ________ _______ _______ _____ __________ ________ _______ __________ ________ ____.
___ _________ _____ __________ ______.
_________ _____ _________ _______ ______ __________ ____ ______ ____ ___ _____ _______.
_________ ___ _______ ____ ________ _____ _______ _____.
_____ _____ _______ __________ ________.
____ _____ ______ ____ __________.
________ __________ ____ _________ __________ __________ ____ ______.
____ ____ ______ _____ _______ _____ ________ __________.
_________ _______ _______ __________ ______ _______ _______ ________ ________ _______ _______.
_____ ___ ________ _________ ____ ______ _________ ________ _________ _______ ________ ___.
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