Which system is responsible for distributing oxygen throughout the body?

The circulatory system is responsible for distributing oxygen throughout the body. This system consists of the heart, blood vessels, and blood, which work together to transport oxygen from the lungs to various tissues and organs. When you breathe in, oxygen enters the lungs and diffuses into the bloodstream. From there, the heart pumps oxygen-rich blood through the arteries to all parts of the body, ensuring that cells and tissues receive the oxygen they need for metabolic processes.

While the respiratory system is essential for the intake of oxygen, it is the circulatory system that carries this oxygen to cells throughout the body. The nervous system primarily manages signals and communication within the body, while the digestive system is responsible for breaking down food for nutrients, including those that support overall metabolic functions but does not directly distribute oxygen. Understanding the distinctions between these systems is important for grasping how bodily functions are interconnected and how oxygen transport is achieved.