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a partition or wall especially in an ovary
(anatomy) a dividing partition between two tissues or cavities

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(動・植物体の)隔膜,隔壁

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/04/09 17:56:48」(JST)

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Interventricular septum (or ventricular septum, or during development septum inferius), abbreviated IVS, is the stout wall separating the lower chambers (the ventricles) of the heart from one another.

The ventricular septum is directed obliquely backward to the right, and 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)..

Development

The muscular part of the interventricular septum derives from the bulboventricular flange which is developed due to differential growth of primitive ventricle and bulbous cordis. Membranous part has a neural crest origin which connects the upper free margin of the bulboventricular flange and anterior and posterior endocardial cushions of atrio ventricular valve. it also gets attached to lower border of spiral septum or the aortico pulmonary septum.

Disorders

A hole in the interventricular septum could be termed a ventricular septal defect (VSD).

Additional images

Heart normal short axis echo

External links

Look up interventricular septum in Wiktionary, the free dictionary.

Interventricular+septum at eMedicine Dictionary
Histology at OU 128_06 - "Heart and semilunar valve"

UpToDate Contents

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1. 急性心筋梗塞の器質的合併症 mechanical complications of acute myocardial infarction
2. 成人における確定診断を得られていない低血圧やショックの評価および初期アプローチ evaluation of and initial approach to the adult patient with undifferentiated hypotension and shock
3. 急性心筋梗塞における心原性ショックの臨床症状および診断 clinical manifestations and diagnosis of cardiogenic shock in acute myocardial infarction
4. 急性冠症候群における急性非代償性心不全の治療 treatment of acute decompensated heart failure in acute coronary syndromes
5. 右室心筋梗塞 right ventricular myocardial infarction

English Journal

Individual reference values for 2D echocardiographic measurements. The Stockholm - Umeå Study.

Svedenhag J1, Larsson TP2, Lindqvist P3,4, Olsson A5, Rythén Alder E2.
Clinical physiology and functional imaging.Clin Physiol Funct Imaging.2015 Jul;35(4):275-82. doi: 10.1111/cpf.12161. Epub 2014 May 8.
OBJECTIVES: Improved reference values for 2D echocardiographic measurements are required, even when more recent echocardiographic technology is employed. In addition, it may be preferable to individualize reference values from age, gender and body characteristics of any subject.DESIGN: A material of
PMID 24810718

Mesodermal expression of Moz is necessary for cardiac septum development.

Vanyai HK1, Thomas T2, Voss AK3.
Developmental biology.Dev Biol.2015 Jul 1;403(1):22-9. doi: 10.1016/j.ydbio.2015.04.011. Epub 2015 Apr 23.
Ventricular septal defects (VSDs) are the most commonly occurring congenital heart defect. They are regularly associated with complex syndromes, including DiGeorge syndrome and Holt-Oram syndrome, which are characterised by haploinsufficiency for the T-box transcription factors TBX1 and TBX5, respec
PMID 25912687

The relationship between the oxidative stress and the cardiac hypertrophy in infants of diabetic mothers.

Topcuoglu S1, Karatekin G2, Yavuz T3, Arman D2, Kaya A4, Gursoy T5, Ovalı F2.
Diabetes research and clinical practice.Diabetes Res Clin Pract.2015 Jul;109(1):104-9. doi: 10.1016/j.diabres.2015.04.022. Epub 2015 Apr 22.
Recently, oxidative stress was suggested to play a role in maternal and fetal complications of diabetic pregnancies. The aim of this study is to evaluate the global oxidant and antioxidant status in infants of diabetic mothers (IDM) via measurement of total antioxidant capacity (TAC) and total oxida
PMID 25934526

Japanese Journal

Association Between Basal Thinning of Interventricular Septum and Adverse Long-Term Clinical Outcomes in Patients With Cardiac Sarcoidosis

Nagano Nobutaka,Nagai Toshiyuki,Sugano Yasuo [他]
Circulation journal : official journal of the Japanese Circulation Society 79(7), 1601-1608, 2015-07
NAID 40020502506

心室中隔壁上の非線形波動 (第6回森和英記念計算科学研究会報告書)

戸次直明,新谷正嶺,石渡信一
国士舘大学紀要情報科学 = Memoirs of the Kokushikan University information science (36), 61-66, 2015-03
NAID 40020457042

Association Between Basal Thinning of Interventricular Septum and Adverse Long-Term Clinical Outcomes in Patients With Cardiac Sarcoidosis

Nagano Nobutaka,Nagai Toshiyuki,Sugano Yasuo,Morita Yoshiaki,Asaumi Yasuhide,Aiba Takeshi,Kanzaki Hideaki,Kusano Kengo,Noguchi Teruo,Yasuda Satoshi,Ogawa Hisao,Anzai Toshihisa
Circulation Journal 79(7), 1601-1608, 2015
… Background:Basal thinning of the interventricular septum (IVS) is an important diagnostic feature of cardiac sarcoidosis (CS), but its long-term prognostic significance remains unclear.Methods and Results:We examined 74 consecutive patients who were diagnosed with CS. …
NAID 130005083942

Related Pictures

★リンクテーブル★

リンク元	「心室中隔」「IVS」
拡張検索	「thickness of interventricular septum」「interventricular septum thickness」
関連記事	「septum」

「心室中隔」

Interventricular septum
	Section of the heart showing the ventricular septum.
	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