Assertion: vein | /r/HasAspect | wall
Facets:
value: with all three layers
type: OTHER
Source sentences:
text: Arteries and veins have walls composed of three layers: the tunica intima, the tunica media, and the tunica adventitia.
text: Veins have walls with all three layers, but the tunica intima and tunica media are much thinner than in similarly sized arteries.