Assertion: normal aortic arch | /r/HasProperty | formed
Facets:
value: from the left fourth arch
type: OTHER
value: from the left dorsal aorta
type: LOCATION
Source sentences:
text: The normal left aortic arch, descending on the left side of the trachea, is formed from the left fourth arch and the left dorsal aorta and the regression of a segment of the embryological RAA.1 ,