The circulatory system transports nutrients and wastes from "summary" of Human Biology by Cecie Starr,Beverly McMillan
The circulatory system plays a vital role in the body by transporting essential nutrients and removing waste products. This system consists of the heart, blood vessels, and blood, working together to ensure that all cells receive the necessary nutrients for proper functioning. The heart acts as a pump, continuously circulating blood throughout the body to deliver oxygen and nutrients to tissues and organs. Blood vessels, such as arteries, veins, and capillaries, form a network that carries blood to and from various parts of the body. Arteries transport oxygen-rich blood away from the heart to the tissues, while veins return oxygen-poor blood back to the heart. Capillaries, the smallest blood vessels, facilitate the exchange of nutrients and waste products between the blood and tissues. Nutrients, such as glucose, a...
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