Answer:- Correct sequence of events regarding cardiac cycle is as follows:- Isovolumic contraction - Ejection - Isovolumic relaxation - active ventricular filling - Passive ventricular filling. Thus, option 4 is correct.
Explanation:- A cardiac cycle starts with contraction of the atria (systole) and ends with ventricular relaxation (diastole).
At the beginning of the cardiac cycle, both the atria and ventricles are relaxed (diastole). Initial phase is ventricular systole also known as isovolumic contraction. And second phase of ventricular systole is the ventricular ejection phase. Ventricular filling occurs during diastolic phase. In Isovolumetric relaxation, the first part of rapid early filling are active, energy-requiring processes which is about 70% of ventricular filling where as final 25% of filling occurs during ventricular diastole passively.
Which of the following is the correct sequence of events regarding the cardiac cycle? Multiple Choice...
2. Aortic valve stenosis is a hardening of the aortic valve which makes it difficult to eject blood from the left ventricle. What effect does this have on the normal electrical and/or pressure events of the cardiac cycle? In your answer, you should include terms and processes such as right atrium, tricuspid valve,right ventricle, pulmonary valve, pulmonary circulation, left atrium, bicuspid valve, left ventricle, aortic valve, systemic circulation, systole, diastole, ventricular systole/diastole, atrial systole/diastole, passive ventricular filling, “atrial kick,” isovolumic...
Question 35 (1 point) Which of the following events occur in ventricular diastole? Select all that apply. rapid filling O atrial contraction O ejection Oisovolumetric relaxation Oisovolumetric contraction Previous Page Next Page Page 35 of 42
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