What does the pulmonary capillaries do?

Answer:
The blood cells carry carbon dioxide to the lungs which, through the mechanism of breathing, gaseous exchange takes place with the carbon dioxide leaving the body while someone breathes out. When they breathe in again, the blood cells in the pulmonary capillaries get loaded with oxygen and the new oxygen rich blood goes to the heart to be sent around the body.
First answer by Silvermagic. Last edit by Silvermagic. Contributor trust: 28 [recommend contributor recommended]. Question popularity: 45 [recommend question].