What is the role of the heart and blood vessels in the human circulatory system?
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The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
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Heart is the most important component of human circulatory system. Heart pumps the blood to various body organs and pull out deoxygeneted blood from the body
It has four chambers.
Vessels carry the blood pumped and pulled by heart into and from body vessels are the path covered by blood to reach various organs.
there are three types of vessels in human body
- viens
- capillaries
- artery
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