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NEETZoologyBody Fluids and Circulation

What repeats the events described in the cardiac cycle?

Options

  1. AThe contraction of the ventricles and atria
  2. BThe relaxation of the ventricles and atria
  3. CThe SAN
  4. DThe veins

Correct answer

C. The SAN

Step-by-step solution

The ventricles and atria are now again in a relaxed (joint diastole) state, as earlier. Soon the SAN generates a new action potential and the events described above are repeated in that sequence and the process continues.

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