Question

the two phases of heart ​

Answer 1

Answer:

The cardiac cycle includes two phases: diastole and systole (Fig. 1.4). In the diastole phase, blood returns to the heartfrom the superior and interior vena cava and flows into the right atrium.

Answer 2

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The cardiac cycle is essentially split into two phases,

1. systole (the contraction phase) and

2. diastole (the relaxation phase).

Each of these is then further divided into an atrial and ventricular component.

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