The primary function of the circulatory system is to transport oxygen, nutrients, hormones, and waste products throughout the body. It consists of the heart, blood vessels, and blood, working together to maintain homeostasis. Oxygenated blood is pumped from the heart to the rest of the body, supplying tissues with essential oxygen and nutrients required for metabolism. Simultaneously, the circulatory system also collects carbon dioxide and other metabolic waste for removal via the lungs and kidneys. By facilitating these exchanges, the circulatory system supports cellular function and overall bodily health, ensuring that organs and systems can operate effectively.