For life-threatening medical emergencies, call 911 without delay. For a mental health crisis, call or text 988 for free and confidential crisis support.
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.
Clinical Review Board All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Healthwise is a URAC accredited health web site content provider. Privacy Policy.
How this information was developed to help you make better health decisions.