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The function of the heart is to maintain the pressure of the blood in the circulation. This provides the organs of the body with adequate oxygen and nourishment and removes waste products.

Blood pressure is determined by two factors:

  1. Cardiac index: the volume of blood pumped by the heart per minute (scaled for body size)
  2. Peripheral resistance: the resistance of the arterial vessels to blood flow.

This application outlines Control of Blood Pressure - Blood Pressure


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