Assertion: atrium's ventricle | /r/HasProperty | muscular chamber
Facets:
Source sentences:
text: Ventricle: where the atrium empties into; Muscular chamber designed to pump the blood forward through the arteries.
text: The ventricles of the heart are muscular chambers because they are responsible for propelling blood out of the heart.
text: Ventricle, muscular chamber that pumps blood out of the heart and into the circulatory system.