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Medical Term:

limbus fossae ovalis


a muscular ring surrounding the fossa ovalis in the wall of the right atrium of the heart.

Synonym(s): border of oval fossa, anulus ovalis, margin of fossa ovalis, Vieussens anulus, Vieussens isthmus, Vieussens limbus, Vieussens ring

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.