Skip to main content

The lungs

Lungs in chest, with detail of air sacs (alveoli) and exchange of oxygen and carbon dioxide in blood.

The lungs are the organs in the chest involved in breathing. The lungs are surrounded and protected by the rib cage. The lung on the left side of the body is a little smaller than the lung on the right.

The lungs transfer oxygen from the air to the blood and remove carbon dioxide (a waste material) from the blood. When you breathe in, oxygen moves out of the air sacs (alveoli) of the lungs into the blood, where it is carried to every cell in your body. At the same time, carbon dioxide moves out of your blood and into the air sacs. You push the carbon dioxide out of your lungs when you breathe out. This process is called respiration.

Current as of: August 6, 2023

Author: Healthwise Staff
Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

 
 

PeaceHealth endeavors to provide comprehensive health care information, however some topics in this database describe services and procedures not offered by our providers or within our facilities because they do not comply with, nor are they condoned by, the ethics policies of our organization.