Human gas exchange process with oxygen cycle explanation outline diagram. Labeled educational carbon dioxide CO2 transportation with red blood cells flow to provide lung function vector illustration.

Enteric nervous system or ENS intrinsic autonomic anatomy outline diagram Enteric nervous system or ENS intrinsic autonomic anatomy outline diagram. Labeled educational scheme with complex detailed ...

carries food (nutrients) and oxygen to all the cells of the body carries away waste products that the body needs to get rid of Without a blood supply, cells and body tissues die. The blood flows ...