Interventricular septum
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| Interventricular septum | |
|---|---|
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| Section of the heart showing the ventricular septum. | |
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| Interior of dorsal half of heart of human embryo of about thirty-five days. (Labeled as 'septum inferius') | |
| Latin | s. interventriculare cordis |
| Gray's | subject #138 535 |
| Artery | anterior interventricular branch of left coronary artery |
| MeSH | Heart+Septum |
| Dorlands/Elsevier | s_08/12730379 |
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Overview
Interventricular septum (or ventricular septum, or during development septum inferius) is the stout wall separating the lower chambers (the ventricles) of the heart from one another.
The ventricular septum is directed obliquely backward and to the right, and is curved with the convexity toward the right ventricle: its margins correspond with the anterior and posterior longitudinal sulci.
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).
Disorders
A hole in the interventricular septum is termed a ventricular septal defect (VSD).
External links
- Interventricular+septum at eMedicine Dictionary
- Histology at OU 128_06 - "Heart and semilunar valve"
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 .
