oval foramen of heart(redirected from foramen ovale cordis)
oval foramen of heart
[TA] 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
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