The system responsible for transporting oxygen, carbon dioxide, food molecules, hormones, and other materials to and from the cells of the body is the circulatory system, also known as the cardiovascular system.
The circulatory system is composed of the heart, blood, and blood vessels. When the heart pumps, it propels oxygen-rich blood through arteries to various tissues and organs. As the blood circulates, it delivers essential nutrients and oxygen to the cells, which they use for energy, growth, and repair.
After delivering oxygen, the blood collects carbon dioxide, a waste product of cellular metabolism, and transports it back to the lungs. Here, carbon dioxide is expelled from the body upon exhalation. Additionally, hormones produced by glands are also carried by the blood to target organs, where they exert their effects.
In summary, the circulatory system plays a vital role in maintaining homeostasis by ensuring that the body’s cells receive the necessary substances while removing waste products efficiently.