Assertion: heart's blood | /r/CapableOf | prevent the regurgitation of blood
Facets:
value: from the great arteries
type: TRANSITIVE-OBJECT
value: into the ventricles
type: TRANSITIVE-OBJECT
Source sentences:
text: During this phase, the AV valves open to allow blood to flow freely into the ventricles while the semilunar valves close to prevent the regurgitation of blood from the great arteries into the ventricles.