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In this video on cardiac physiology, the Starling mechanism or Starling's law of the heart is explained in a simple and easy way. The cardiovascular system or circulatory circuit is shown as a closed circuit and in series, so that the relationship between cardiac output (volume of blood that drives the heart per minute) and venous return (volume of blood that returns to the heart per minute). For this reason, the amount of blood per minute propelled by both ventricles of the heart tends to equalize.
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