Endocardial cushions | |
---|---|
Details | |
Carnegie stage | 14 |
Days | 27 |
Precursor | Lateral plate mesoderm[1] |
Gives rise to | Septum intermedium |
Identifiers | |
Latin | tubera endocardiaca atrioventricularia |
MeSH | D054089 |
TE | cushions_by_E5.11.1.6.0.0.4 E5.11.1.6.0.0.4 |
Anatomical terminology |
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[2] and conotruncal region of the bulbus cordis.[3]
During heart development, the heart starts out as a tube. As heart development continues, this tube undergoes remodeling to eventually form the four-chambered heart. The endocardial cushions are a subset of cells found in the developing heart tube that will give rise to the heart's primitive valves and septa, critical to the proper formation of a four-chambered heart.[4]