Septum primum | |
---|---|
Details | |
Carnegie stage | 13 |
Days | 29 |
Gives rise to | atrial septum |
Identifiers | |
Latin | septum primum |
Anatomical terminology |
During heart development of a human embryo, the single primitive atrium becomes divided into right and left by a septum, the septum primum. The septum primum (from Latin 'first septum') grows downward into the single atrium.