The interventricular septum (IVS, or ventricular septum, or during development septum inferius), is the stout wall separating the ventricles, the lower chambers of the heart, from one another.
Its upper and posterior part, which separates the aortic vestibule from the lower part of the right atrium and upper part of the right ventricle, is thin and fibrous, and is termed the membranous ventricular septum . The posterior interventricular artery, a branch of right coronary artery, supplies the posterior 1/3 of the interventricular septum.
The posterior interventricular artery, a branch of right coronary artery, supplies the posterior 1/3 of the interventricular septum. The remaining anterior 2/3 is supplied by the anterior interventricular artery which is a septal branch of the left anterior descending artery, which is a branch of left coronary artery .
Intraventricular Septum Image Diagram - Chart - diagrams and charts with labels. This diagram depicts Intraventricular Septum Image