Regarding the cardiac cycle at resting HR, when in the cycle does ventricular filling occur? How important is atrial contraction to the EDV? Why is the first part of ventricular contraction isovolumetric? When and why does rapid ejection of blood from the ventricle occur?

Regarding the cardiac cycle at resting HR, when in the cycle does ventricular filling occur? How important is atrial contraction to the EDV? Why is the first part of ventricular contraction isovolumetric? When and why does rapid ejection of blood from the ventricle occur?

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter9: Cardiac Physiology

Section9.3: Mechanical Events Of The Cardiac Cycle

Problem 2CYU

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Regarding the cardiac cycle at resting HR, when in the cycle does ventricular filling occur? How
important is atrial contraction to the EDV? Why is the first part of ventricular contraction isovolumetric?
When and why does rapid ejection of blood from the ventricle occur?

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