Assertion: vein's valve | /r/CapableOf | use specialised junctions
Facets:
value: with anchoring filaments
type: OTHER
value: to allow a unidirectional flow
type: PURPOSE
Source sentences:
text: The capillaries are blind-ended, and the valves at the ends of capillaries use specialised junctions together with anchoring filaments to allow a unidirectional flow to the primary vessels.