How does homeostasis control heart rate?

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Apr 17, 2016


Heart rate is regulated by homeostasis when we exercise.


Homeostasis helps to increase and decrease our heart rate according to our body requirements.

When we exercise, heart rate increases,
because the brain transmits electrical impulses to he heart, to contract harder and more often.

When we stop exercising, our heart rate gradually returns to normal, and this is, again, done by homeostasis.

It is important to know what homeostasis means :
Homeostasis is how the body keeps conditions inside it the same. Scientists describe it as the maintenance of a constant internal environment.

This means homeostasis tries to maintain a constant body temperature, blood glucose concentration, etc.

A more DETAILED explanation:
When we exercise, our muscles contract more often (because we move more). More muscle contraction requires more energy, and more energy can only be obtained by more respiration.
Respiration in muscle requires glucose, and how does our body transport more glucose?

By the heart pumping blood, which contains glucose, at a faster rate.

And how does the heart pump at a faster rate?
Electrical impulses are transmitted by the brain to the heart along nerves. This is the nervous system, another broad topic, and not the circulatory system.

Well, i hope this helps :)

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