Explain the different steps involved in the pumping action of heart during a single cardiac cycle.
Answers
Answer:
Explanation:
The cardiac cycle can be divided into four stages: Filling phase – the ventricles fill during diastole and atrial systole. Isovolumetric contraction – the ventricles contract, building up pressure ready to pump blood into the aorta/pulmonary trunk.
Answer:
the cardiac cycle involves four major stages of activity
1) isovolumic relaxation
2) inflow
3) isovolumic contraction
4) ejection
Explanation:
the cardiac style has two phases namely diastole and systole .
in the diastole phase blood returns to the heart from the superior and interior vena cava and flows into the right atrium . the pressure in the right atrium increases as the blood flows into it and exceeds the pressure of the right ventricle . as a result, the tricuspid valve opens and allows the blood to flow into the right ventricle .
also the oxygenated blood coming from the lungs flows into the left atrium and as the atrial pressure increases, the mitral valve opens and blood flows into the left ventricle