During what phase does blood flow from the ventricles into the pulmonary trunk and aorta? isovolumetric contraction phase ventricular ejection phase isovolumetric relaxation phase ventricular filling

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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During what phase does blood flow from the ventricles into the pulmonary trunk and aorta?
O isovolumetric contraction phase
O ventricular ejection phase
isovolumetric relaxation phase
ventricular filling
Transcribed Image Text:During what phase does blood flow from the ventricles into the pulmonary trunk and aorta? O isovolumetric contraction phase O ventricular ejection phase isovolumetric relaxation phase ventricular filling
Expert Solution
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The recurring sequence of changes that takes place in each beat of the heart ( cardio dynamic events ) is called the cardiac cycle.

 

The three stages of the cardiac cycle includes ;

  • Ventricular filling - when blood fills up the ventricles . It is coming from the lungs , through the left atrium to the left ventricle. At the  same time, the blood from the body ie deoxygenated is carried through the venacava of the right atrium to the right ventricle . So both of the ventricles are filling at the same time . Then they reaches a total volume called the end diastolic volume . 

 

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