Lungs and Respiratory System
en español: Los pulmones y el aparato respiratorio
Medically reviewed by: Larissa Hirsch, MD
What Are the Lungs and Respiratory System?
The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out (called expiration, or exhalation).
This exchange of oxygen and carbon dioxide is called respiration.