Do and label the parts of circulatory system?

The circulatory system consists of the heart, blood vessels, and blood. The heart, a muscular organ, pumps blood throughout the body. Blood vessels include arteries (carry oxygen-rich blood away from the heart), veins (bring oxygen-poor blood back to the heart), and capillaries (exchange nutrients and waste between blood and tissues). Blood transports oxygen, nutrients, hormones, and waste products, playing a crucial role in maintaining homeostasis.