What is occurring during isovolumetric relaxation during the cardiac cycle? O The ventricles are ejecting blood into the arteries O The ventricles are contracting but the pressure is not yet above arterial pressure O The ventricles are relaxing and the pressure is below atrial pressure The atria are contracting and pushing blood through the AV valves pressure in the ventricles exceeds atrial pressure but is lower than arterial pressure

Human Anatomy & Physiology (11th Edition)
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Author:Elaine N. Marieb, Katja N. Hoehn
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What is occurring during isovolumetric relaxation during the cardiac cycle?
O The ventricles are ejecting blood into the arteries
O The ventricles are contracting but the pressure is not yet above arterial pressure
O The ventricles are relaxing and the pressure is below atrial pressure
O The atria are contracting and pushing blood through the AV valves
O pressure in the ventricles exceeds atrial pressure but is lower than arterial pressure
Transcribed Image Text:What is occurring during isovolumetric relaxation during the cardiac cycle? O The ventricles are ejecting blood into the arteries O The ventricles are contracting but the pressure is not yet above arterial pressure O The ventricles are relaxing and the pressure is below atrial pressure O The atria are contracting and pushing blood through the AV valves O pressure in the ventricles exceeds atrial pressure but is lower than arterial pressure
Expert Solution
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Cardiac cycle is defined as the sequence of coordinated events taking place in the heart during each beat. Each heart beat consists of two events called systole and diastole.

Systole is contraction of the heart muscles and diastole is relaxation of heart muscles.

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