Portions
- The greater portion of it is thick and muscular and constitutes the muscular ventricular septum.
- 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 (septum membranaceum)..
Read more about this topic: Interventricular Septum
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“Man is in part divine,
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—George Gordon Noel Byron (1788–1824)