Inhaled Air Research Paper

The lungs are spongy and soft lobes inside the chest, which is protected by the ribcage. Inhaled air is directed down the trachea, which is called windpipe as well, distributed into two tubes (bronchi) that each service a lung. The bronchi divide into smaller tubes called bronchioles, and further still into tiny air sacs called alveoli.

Each alveolus has a fine web of capillaries where the exchange of oxygen and carbon dioxide takes place. Oxygen molecules dissolve and travel across a thin film of moisture from the air bag to the bloodstream. Oxygenated blood is sent to the heart and then pumped around the body.

At the same time, carbon dioxide in the blood crosses from the capillaries to the air bags using the