is 808.96 KB, has a resolution of 3185x2192 pixels and was uploaded on July 5, 2018 @ 1:26 pm by user: lilliwss. It is filed under the tags: lung, blood, pulmonary alveolus, capillary, gas exchange. Click the blue button at the top to freely download: Vector Eye Pulmonary Alveolus Gas Exchange Lung Capillary Respiration png.