Assertion: aorta's wall | /r/HasProperty | thin
Facets:
Source sentences:
text: The walls may be thin or thickened by the presence of a mural thrombus (circumferential or more frequently eccentric).
text: Because the aorta is an artery, its walls are made of up three layers; a thin inner layer, a muscular middle layer (that gives the vessel its flexibility under pressure from the filling blood), and a fiber-like outer layer that gives the vessel strength to not burst when the heart pumps blood to the body.