Assertion: artery | /r/MadeOf | small blood vessels
Facets:
value: within their walls
type: LOCATION
Source sentences:
text: Larger arteries and veins contain small blood vessels within their walls known as the vasa vasorum
text: Larger arteries and veins contain small blood vessels within their walls known as the vasa vasorum
text: Larger arteries and veins contain small blood vessels within their walls known as the vasa vasorum