How the Lungs Work - What Breathing Does for the Body
Breathing involves two phases: breathing in and breathing out. Your lungs deliver oxygen and remove carbon dioxide from your blood in a process called gas exchange. Gas exchange happens in the capillaries surrounding the alveoli, where the oxygen that is breathed in enters the circulatory system and carbon dioxide in the blood is released to the lungs and then breathed out. If you have problems breathing, gas exchange may be impaired, increasing the risk of serious health problems.
Media Type: Html
- SourceUrl: https://www.nhlbi.nih.gov/subscribe/4461
- Syndication ID: 18865
- Language: English
- Source: National Heart, Lung, and Blood Institute (NHLBI)
- Date Syndication Captured: Tuesday, September 24, 2019 at 04:43 PM
- Date Syndication Updated: Thursday, July 09, 2026 at 04:59 AM
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