Endocardial cushions Endocardial cushions, or atrioventricular cushions, refer to a subset of cells in the development of the heart that play a vital role in the proper formation of the heart septa. They develop on the atrioventricular canal and conotruncal region of ...

project into the

atrial canal The proper development of the atrioventricular canal into its prospective components (The heart septum and associated Heart valve, valves) to create a clear division between the four compartments of the heart and ensure proper blood movement throug ...

, 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

External links

Overview at edu.mt
Embryology of cardiovascular system {{Portal bar, Anatomy