See Also: interatrial foramen secundum(medicine)
secondary interatrial foramen(medicine)
interatrial foramen primum(medicine)
primary interatrial foramen(medicine)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
secundum(dictionary)
secundum(medicine)
ostium secundum(medicine)
septum secundum(medicine)
interatrial(medicine)

interatrial foramen secundum (medicine)


interatrial foramen secundum


A secondary opening appearing in the upper part of the septum primum in the sixth week of embryonic life, just prior to the closure of the interatrial foramen primum.

Synonym: ostium secundum, secondary interatrial foramen.