Assertion: vein's blood vessel | /r/CapableOf | call vasa vasorum
Facets:
Source sentences:
text: The tunica externa also contains tiny blood vessels called vasa vasorum that supply blood to the walls of your veins.
text: Also characteristic of this layer is the presence of small blood vessels called the vasa vasorum that supply the walls of larger arteries and veins.
text: The tunica externa also contains tiny blood vessels called vasa vasorum that supply blood to the walls of your veins.