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Medical Term:

oval foramen of heart


in the fetal heart, the oval opening at the free margin of the septum secundum; the persistent part of the septum primum acts as a valve for this interatrial communication during fetal life and normally postnatally becomes fused to the septum secundum to close it.

Synonym(s): foramen ovale cordis

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