Assertion: vein's wall | /r/HasAspect | three layers
Facets:
value: as in the arteries
type: LOCATION
Source sentences:
text: As in the arteries, the walls of veins have three layers, or coats: an inner layer, or tunica intima; a middle layer, or tunica media; and an outer layer, or tunica adventitia.
text: Capillary walls have only one layer--the intima.
text: The walls of arteries and veins have three layers.
text: Capillary walls have only one layer--the intima.