Assertion: cusp | /r/CapableOf | occlude the valve orifice
Facets:
Source sentences:
text: A leaflet or cusp is a fleshy projection that occludes the valve orifice when apposed with adjacent leaflets, thus preventing retrograde flow of blood.
text: A leaflet or cusp is a fleshy projection that occludes the valve orifice when apposed with adjacent leaflets, thus preventing retrograde flow of blood.