Assertion: heart's atrium | /r/CapableOf | force blood
Facets:
value: from the atria
type: TRANSITIVE-OBJECT
value: to the ventricles
type: TRANSITIVE-OBJECT
Source sentences:
text: This coordinates the contractions of the atria and ventricles so that the atria always contract before the ventricles, thus forcing blood from the atria to the ventricles.