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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
As viewed from the right atrium, the floor of the fossa ovalis is formed by
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The correct answer is  Fossa oavlis represents the site of embryonic spectum primum hence from right atrium its seems to be developed from septum primum. BD CHAURASIA'S HUMAN ANATOMY.VOLUME 1. 6TH EDITION.PAGE NO 255