The circulatory system transports nutrients and oxygen to the cells and takes carbon dioxide and waste products to the lungs and kidneys for elimination.
How does the circulatory system work?
- The circulatory system transports nutrients and oxygen to all the cells of the body.
- Circulatory system consists of the heart and the blood vessels (arteries and veins) which are present throughout the body and deliver nutrients and oxygen.
- The arteries work to carry the blood away from the heart while the veins carry it back to the heart.
- The network of blood vessels is just like a tree with branches.
- The heartbeats control the blood circulation.
- Blood flows from the atria to the ventricles from where it gets distributed to other organs.
- The brief pathway of blood through heart is as follows: different organs of the body > inferior/superior vena cava > right atrium > right ventricle > pulmonary arteries > lungs > pulmonary veins > left atrium > left ventricle > aorta > body cells
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