The circulatory system is the body's transport system.
It carries oxygen, nutrients, and water to all parts of the body.
It removes waste like carbon day oxide and urea.
The heart blood through the body.
Arteries carry blood away from the heart.
Weighing blood back to the heart.
Capillaries exchange gases, food, and waste.
Blood is made of red cell, white cell, plasma, platelets.
It help fight germs and infections.
It keep body temperature and balance steady.
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