How does the blood travel in human system?
The circulatory system works as follows:
1. The heart pumps oxygen-rich blood from the left ventricle into the aorta, the largest artery in the body.
2. The aorta branches into smaller arteries that carry blood to all parts of the body.
3. The arteries branch into capillaries, tiny blood vessels that allow oxygen and nutrients to pass into the tissues and waste products to pass out of the tissues.
4. The capillaries merge into veins, which carry oxygen-depleted blood back to the heart.
5. The veins empty into the right atrium of the heart.
6. The right atrium pumps the oxygen-depleted blood into the right ventricle.
7. The right ventricle pumps the oxygen-depleted blood into the pulmonary artery, which carries it to the lungs.
8. In the lungs, the oxygen-depleted blood picks up oxygen and releases carbon dioxide.
9. The oxygen-rich blood returns to the heart through the pulmonary veins.
10. The left atrium of the heart pumps the oxygen-rich blood into the left ventricle.
11. The left ventricle pumps the oxygen-rich blood back out to the body.
This cycle of blood circulation repeats itself continuously, supplying the body with oxygen and nutrients and removing waste products.
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