Aorticopulmonary septum

Aorticopulmonary septum
Diagrams to show the development of the septum of the aortic bulb and of the ventricles.
Transverse sections through the aortic bulb to show the growth of the aortic septum. The lowest section is on the left, the highest on the right of the figure.
Gray's	subject #135 514
Days	37
Precursor	neural crest

The aorticopulmonary septum (also called the spiral septum, or aortic septum in older texts) is developmentally formed from neural crest, specifically the cardiac neural crest, and actively separates the aorta and pulmonary arteries and fuses with the interventricular septum within the heart during development.^{[1] [2]}

The actual mechanism of septation of the outflow tract is poorly understood, but is recognized as a dynamic process with contributions from contractile, hemodynamic, and extracellular matrix interactions.

See also

• Aortopulmonary septal defect

References

External links

• http://isc.temple.edu/marino/embryology/Heart98/abnorm_text.htm

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