Question

at what point in the cardiac cycle were you able to get a second heartbeat


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Answer 1

Answer:

The atria and ventricles alternately contract in each cardiac cycle. The pressures in the chambers change greatly over the course of the cardiac cycle. The cardiac cycle is essentially split into two phases, systole (the contraction phase) and diastole (the relaxation phase).

Answer 2

Answer:

diastole

Isovolumetric relaxation (d-e): When the ventricular pressures drop below the diastolic aortic and pulmonary pressures (80 mmHg and 10 mmHg respectively), the aortic and pulmonary valves close producing the second heart sound (point d). This marks the beginning of diastole.

Explanation:

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