The circulatory system transports nutrients and oxygen throughout the body from "summary" of NCERT Exemplar Problems-Solutions BIOLOGY class 12th by Arihant Experts
The circulatory system is responsible for the transportation of essential nutrients and oxygen throughout the body. This system consists of the heart, blood vessels, and blood. The heart serves as the central pump that propels blood throughout the body. It has four chambers - two atria and two ventricles, which work together to ensure the circulation of blood. The blood vessels, including arteries, veins, and capillaries, form a network that carries blood to different parts of the body. Arteries carry oxygen-rich blood away from the heart, while veins transport oxygen-poor blood back to the heart. Capillaries are tiny blood vessels that connect arteries and veins, allowing for the exchange of nutrients and oxygen with cells. Blood plays a crucial role in ...
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