Q:

How is heart rate controlled?

A:

Quick Answer

The body controls the heart rate through its own electrical system that ensures blood flows through the heart and lungs in a controlled manner. Issues with the electrical system, such as an arrhythmia, can cause problems with a regular heart beat and how the body controls heart rate.

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Full Answer

Beyond regulating the heart rate of the body, the heart also helps to ensure the blood flows through the body at an efficient rate. A series of valves ensures that the heart flows in the right direction and moves through the four chambers of the heart in the appropriate order to ensure survival.

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