Textbook ExpertVerified Tutor
15 Nov 2021
Background and context
The circulatory system is a biological system that helps in the circulation of fluids within the body. It comprises the chief pumping organs heart and the blood vessels like arteries, capillaries, and veins. The heart is the muscular organ made of cardiac muscles and they constantly pump the blood through its chamber to circulate the blood all around the body.
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