Variation of heart rate

Variation of heart rate

Variation of heart rate

  • Cardiac muscles are myogenic, therefore heart beats at regular basis while the body is at rest
  • When there is a need for more energy, the sympathetic nerves stimulate the sino-arterial to increase the rate of heart beat to increase blood supply to the body.
  • When the need for energy decreases the Vegas nerve sends impulse to the heart to reduce heart rate.

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