What is the main function of the heart in the human body, and why is it important?
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The primary function of the heart is to pump blood throughout the body.
How the Heart Works:
The heart is a muscular organ about the size of your fist.
It works like a pump, pushing blood through a system of blood vessels called the circulatory system.
Why This Is Important:
1. Delivers Oxygen and Nutrients:
The heart pumps oxygen-rich blood from the lungs to all parts of the body, helping body cells to produce energy.
2. Removes Waste Products:
The heart also helps carry waste materials, like carbon dioxide, from the body cells to the lungs and other organs for removal.
3. Keeps Blood Moving:
Without the constant pumping action of the heart, blood would not circulate, and the body would not get what it needs to survive.
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