Assertion: atrium's wall | /r/HasProperty | septum
Facets:
Source sentences:
text: The ventricle is incompletely separated into two halves by a wall (septum), with a considerable gap near the pulmonary artery and aortic openings.
text: The muscular wall is called a septum.
text: This early wall is known as the septum primum (i.e. primary septum); it partially separates the atria into the left and right components.
text: There is a wall (septum) between the two atria and another wall between the two ventricles.