Atrioventricular septum
Atrioventricular septum | |
---|---|
Details | |
Identifiers | |
Latin | septum atrioventriculare |
TA98 | A12.1.00.016 |
TA2 | 3969 |
FMA | 7136 |
Anatomical terminology |
The atrioventricular septum is a
Although the name "atrioventricular septum" implies any septum between an atrium and a ventricle, in practice the divisions from RA to RV and from LA to LV are mediated by valves, not by septa. Also, there is usually no communication between the LA and the RV.
Structure
It has a membranous and muscular part.[3]
When considering only the membranous septum, it is also known as the "atrioventricular component of the membranous septum".[4]
Development
It is formed by the union of the dorsal AV cushion and ventral AV cushion.[5] This septum divides the atrioventricular canal.[6]
Clinical relevance
In some cases, defects can be identified with an
Incomplete formation of the endocardial cushions can lead to atrioventricular septal defects, such as an ostium primum defect.
See also
References
- ^ "Congenital Heart Disease - When Chambers and Valves Are in Normal Sequence and Position". Archived from the original on 2011-07-19. Retrieved 2009-10-11.
- ^ "Congenital Heart Disease". Archived from the original on 2009-08-28. Retrieved 2009-10-11.
- ^ "Yale: Congenital Heart Disease: AV septal defects". Archived from the original on 2009-06-07. Retrieved 2009-10-11.
- PMID 18950547.
- ISBN 0-7817-5726-6.
- ISBN 978-0-19-517819-7.
- PMID 17992316.