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Medical Definition of Crista dividens
1. The lower free edge of the septum secundum, forming the upper margin of the foetal foramen ovale; the limbus of the foramen ovale. (05 Mar 2000)
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1. The lower free edge of the septum secundum, forming the upper margin of the foetal foramen ovale; the limbus of the foramen ovale. (05 Mar 2000)