Assertion: lymphatic system's vessel | /r/HasAspect | same three tunics
Facets:
value: as veins
type: MANNER
Source sentences:
text: The collecting lymphatic vessels have the same three tunics as veins, but the collecting vessels have thinner walls and more internal valves.
text: However, lymphatic and blood vessels both have the same three tunics, and valves to prevent backflow.