Septum intermedium
| Septum intermedium | ||
|---|---|---|
 | ||
| Interior of dorsal half of heart of human embryo of about thirty-five days. | ||
 | ||
| Same heart as in Fig. 467, opened on right side. | ||
| Gray's | subject #135 512 | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Endocardial cushions project into the atrial canal, and, meeting in the middle line, unite to form the septum intermedium which divides the canal into two channels, the future right and left atrioventricular orifices.
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
Prenatal development/Mammalian development of circulatory system | |
|---|---|
| Vascular | Blood island
arteries: Dorsal aorta - Aortic arches - Vitelline arteries - Ductus arteriosus - Umbilical artery |
| Heart development | Primitive heart tube: Truncus arteriosus - Bulbus cordis - Primitive ventricle - Primitive atrium - Sinus venosus Septum primum (Ostium primum, Ostium secundum) - Septum secundum (Foramen ovale) - other septa (Endocardial cushions/Septum intermedium, Aorticopulmonary septum) - Atrial canal |
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