Aorticopulmonary septum
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| Aorticopulmonary septum | ||
|---|---|---|
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| Diagrams to show the development of the septum of the aortic bulb and of the ventricles. | ||
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| 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 | |
| Cardiology Network |
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| Adult Congenital |
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Overview
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] [1]
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.
Clinical significance
The development of the aorticopulmonary septum is complex, and disorders of development are associated with several congenital heart defects, including:
- persistent truncus arteriosus[1]
- double outlet right ventricle
- transposition of the great vessels
- tetralogy of Fallot
References
External links
Prenatal development/Mammalian development of circulatory system | |
|---|---|
| Vascular | Blood island
arteries: Dorsal aorta - Aortic arches - Vitelline arteries - Ductus arteriosus - Umbilical artery |
| Heart development | Primitive heart tube: Truncus arteriosus - Bulbus cordis - Primitive ventricle - Primitive atrium - Sinus venosus Septum primum (Ostium primum, Ostium secundum) - Septum secundum (Foramen ovale) - other septa (Endocardial cushions/Septum intermedium, Aorticopulmonary septum) - Atrial canal |
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
