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.
Details
Days35
Anatomical terminology
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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

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

External links

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Development of the circulatory system
Heart
Tubular heart
  • Truncus arteriosus
  • Bulbus cordis
  • Primitive ventricle
  • Primitive atrium
  • Sinus venosus
Chamber formation
  • Atrioventricular
    • Primary interventricular foramen
    • Endocardial cushions
    • Septum intermedium
    • Atrioventricular canal
  • Atrial
    • Septum primum
    • Foramen secundum
    • Primary interatrial foramen
    • Septum secundum
    • Foramen ovale
Other
Vessels
Arteries
Veins
Lymph vessels
Other
Extraembryonic
hemangiogenesisFetal circulation


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