Ralph Hutchings Portfolio

Image 23 of 56
< Prev Next >
Resin cast of a human lung showing each lobe in a different color. The lungs take in around 0.5 liters of air in every breath, with around 12 breaths per minute at rest. The lungs have a large network of airways, which gives them a huge surface area for oxygen to diffuse into the blood and carbon dioxide to diffuse out.