HUMAN NUTRITION

Detailed explanation-1: -The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.

Detailed explanation-2: -The circulatory system has the job of transporting substances throughout the body. With a system of veins and arteries, blood moves continuously all over the body. Blood carries chemicals to the places they need to go, and it also transports waste products to be eliminated from the body.

Detailed explanation-3: -One of the key functions of blood is transport. Blood vessels are like networks of roads where deliveries and waste removal take place. Oxygen, nutrients and hormones are delivered around the body in the blood and carbon dioxide and other waste products are removed.