ID 230812478 © VectorMine | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
human gas exchange process anatomical explanation lungs function oxygen o2 carbon dioxide outline concept diagram scheme educational anatomy science biology illustration vector blood medicine artery care illness research bronchiti physiology circulation cycle health medical organ pulmonary respiration system breathing respiratory body graphic drawing red cells transport inside healthcare co2