Assertion: circulatory system's artery | /r/Desires | diffusion of oxygen
Facets:
value: in them
type: LOCATION
Source sentences:
text: This helps demonstrate the diffusion of oxygen through the blood vessels and shows that the arteries do need diffusion of oxygen in them in order for survival of smooth muscle cells, and also shows that the small capillaries will allow complete diffusion of oxygen across the capillary walls.