File:Stages of Atrial Septation.png

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Description

Figure 18

Anatomy of the atrioventricular septation complex in a human four-chambered heart with normal anatomy and in hearts with AVSDs. (A) shows a properly septated heart with a complete atrial and ventricular septum. (B) depicts a heart with an incomplete AVSD, and in (C) a heart with a complete AVSD is shown. Note that when a primary atrial septal defect is observed, the muscular rim at the base of the atrial septum is missing. IVS = interventricular septum, pAS = primary atrial septum, pASD = primary atrial septal defect, LA = left atrium, LV = left ventricle, RA = right atrium, RV = right ventricle, VSD = ventricular septal defect.

Reference

Burns, T.; Yang, Y.; Hiriart, E.; Wessels, A. The Dorsal Mesenchymal Protrusion and the Pathogenesis of Atrioventricular Septal Defects. J. Cardiovasc. Dev. Dis. 2016, 3, 29.

Copyright

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current00:21, 4 October 2017Thumbnail for version as of 00:21, 4 October 20173,582 × 1,290 (5.14 MB)Z5059996 (talk | contribs)Anatomy of the atrioventricular septation complex in a human four-chambered heart with normal anatomy and in hearts with AVSDs. (A) shows a properly septated heart with a complete atrial and ventricular septum. (B) depicts a heart with an incomplete AV...

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