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Septum intermedium

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Heart structure seen in its development
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.
Details
Days35
Anatomical terminology

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.

References

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Public domain This article incorporates text in the public domain from page 512 of the 20th edition of Gray's Anatomy (1918)

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Development of the circulatory system
Heart
Tubular heart
Chamber formation
Other
Vessels
Arteries
Veins
Lymph vessels
Other
Extraembryonic
hemangiogenesis
Fetal circulation


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