Wednesday, August 15, 2012

How the Human Heart Pumps Blood


Human Heart

Human Heart labels

The most important part of our body-Human Heart

There are many amazing things that people do not know about the human heart. Your heart is made up of four chambers that pump blood throughout your body. Your heart pumps blood each moment that you are alive, and throughout your lifetime, your heart will pump more blood through your body than you can imagine. In order to pump the blood, your heart contracts and relaxes rhythmically. You will notice that when you are at rest, your heart will pump more slowly than it does when you are doing something such as exercising. This is because when you are moving, you use up more of the oxygen in your blood.

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