How does the respiratory system function in the human body?

The respiratory system in the human body is responsible for the exchange of oxygen and carbon dioxide. When we inhale, oxygen is taken in and transported to the lungs, where it is absorbed into the bloodstream. At the same time, carbon dioxide is released from the blood into the lungs and then exhaled. This process is vital for the body to function properly and is controlled by the diaphragm and intercostal muscles. The respiratory system ensures that the body receives the oxygen it needs for cellular function and removes waste products.