
S1E8
Breathing
1 Kasım 1987
26 dk
10.0/10(1 oy)
Air bubbles travel from the nose to the lungs. In the swampy, mucus-filled areas, they meet the red blood cells that transport them around the body.

Air bubbles travel from the nose to the lungs. In the swampy, mucus-filled areas, they meet the red blood cells that transport them around the body.