What is the difference between systole and diastole?
Systole is heart-muscle contraction (pumping blood out); diastole is relaxation (chambers refill).
Systole is heart-muscle contraction (pumping blood out); diastole is relaxation (chambers refill). A reliable way to keep them apart is to focus on what each one is defined by, not just the similar-sounding words.
Key point
systole vs diastole
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