Assertion: mediastinum's pericardium | /r/CapableOf | call pericardial sac
Facets:
Source sentences:
text: The pericardium, also called pericardial sac, is a double-walled sac containing the heart and the roots of the great vessels.
text: The pericardium, also called pericardial sac, is a double-walled sac containing the heart and the roots of the great vessels.