ostium secundum

ostium secundum
ostium se·cun·dum -sə-'kən-dəm n an opening in the upper part of the developing embryonic interatrial septum corresponding to the foramen ovale of the fetus

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an opening high in the septum primum of the embryonic heart, approximately where the foramen ovale will develop. Called also interatrial foramen secundum.

Medical dictionary. 2011.

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  • Ostium — (plural ostia) may refer to: Anatomy Ostium of Fallopian tube Ostium primum or foramen ovale (ostium secundum) of the developing heart Ostium maxillare of the maxillary sinus Ostium of female lepidoptera genitalia This disambiguation page lists… …   Wikipedia

  • ostium primum — См. ostium secundum. Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones Hancourt, S.A. 1999 …   Diccionario médico

  • ostium primum — ostium pri·mum prī məm n an opening between the two embryonic atria of the heart that exists temporarily at the bottom of the developing interatrial septum and is eventually closed off by this septum and replaced by the ostium secundum * * * an… …   Medical dictionary

  • secundum — see OSTIUM SECUNDUM …   Medical dictionary

  • Ostium primum — Infobox Embryology Name = Ostium primum Latin = GraySubject = 135 GrayPage = 512 Caption = Interior of dorsal half of heart from a human embryo of about thirty days. (Ostium primum visible below septum primum, but not labeled.) Caption2 = System …   Wikipedia

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