Khan Academy on a Stick
Inhaling and Exhaling
Find out exactly why air goes in and out of the lungs. Rishi is a pediatric infectious disease physician and works at Khan Academy.
If the above player doesn't work, you can try this direct link.
Find out exactly why air goes in and out of the lungs. Rishi is a pediatric infectious disease physician and works at Khan Academy.
If the above player doesn't work, you can try this direct link.