What these tiny sacs in the lungs do and conditions that can affect them Medically reviewed by Susan Russell, MD Alveoli are ...

Gas exchange is a process that involves the swapping of gases that occurs at exchange surfaces such as the alveoli found within your lungs. Gas exchange allows oxygen to travel into your cells for ...

A waste product of aerobic respiration is carbon dioxide. The layer of moisture in the alveoli allows gases to dissolve so that they can diffuse quickly. The alveoli have a very large total ...