右房室弁
WordNet
- relating to or affecting the atria and ventricles of the heart; "atrioventricular disease" (同)auriculoventricular
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/10/11 05:15:26」(JST)
[Wiki en表示]
"Tricuspid" redirects here. For the type of tooth, see dental anatomy.
| Tricuspid valve |
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Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow. (Tricuspid valve labeled at bottom left.)
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Base of ventricles exposed by removal of the atria. (Tricuspid valve visible at bottom right.)
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| Details |
| Identifiers |
| Latin |
Valvula tricuspidalis,
valva atrioventricularis dextra |
| MeSH |
A07.541.510.893 |
| TA |
A12.1.02.003 |
| FMA |
7234 |
| Anatomical terminology
[edit on Wikidata]
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The tricuspid valve, or right atrioventricular valve, is on the right dorsal side of the mammalian heart, between the right atrium and the right ventricle. The function of the valve is to prevent back flow of blood into the right atrium.
Contents
- 1 Structure
- 2 Function
- 3 Clinical significance
- 4 Additional Images
- 5 References
- 6 External links
Structure
The normal tricuspid valve usually has three leaflets and three papillary muscles. They are connected to the papillary muscles by the chordae tendineae, which lie in the right ventricle. Tricuspid valves will not always consist of three leaflets and may also occur with two or four leaflets; the number may change during one's lifetime.[1]
Function
See also: Heart valves
The tricuspid valve prevents back flow of blood from the right ventricle into the right atrium during ventricular systole when it closes and allows blood to flow from right atrium into right ventricle during ventricular diastole when it opens. This valve is weakened by drug abuse. The back flow of blood is also known as regression or tricuspid regurgitation.[2]
Clinical significance
Tricuspid regurgitation is not uncommon in the tricuspid valve.
It is common for a valve to be infected resulting in endocarditis, in intravenous drug users.[3][4] Patients who inject narcotics or other drugs intravenously may introduce infection, which will travel to the right side of the heart, most often caused by the bacteria S. aureus.[5] In other patients without a history of intravenous exposure, endocarditis is more frequently left-sided.[5]
The tricuspid valve can be affected by rheumatic fever, which can cause tricuspid stenosis or tricuspid insufficiency (also called tricuspid regurgitation).[6] Some patients are born with congenital abnormalities of the tricuspid valve. Congenital apical displacement of the tricuspid valve is called Ebstein's anomaly and typically causes significant tricuspid regurgitation.
Certain carcinoid syndromes can affect the tricuspid valve by producing fibrosis due to serotonin production by those tumors.
The first endovascular tricuspid valve implant was performed by surgeons at the Cleveland Clinic.[7]
Additional Images
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Tricuspid valve.Deep dissection.
References
- ^ Richard Van Pragh: Cardiac anatomy in A. C. Chang et al.: Pediatric Cardiac Intensive Care, Philadelphia 1998.
- ^ Healthline Editorial Team. "Right atrioventricular valve (Tricuspid valve)". Healthline.
- ^ Demin AA, Drobysheva VP, Vel'ter OIu (2000). "[Infectious endocarditis in intravenous drug abusers]". Klinicheskaia meditsina (in Russian). 78 (8): 47–51. PMID 11019526.
- ^ Butany J, Dev V, Leong SW, Soor GS, Thangaroopan M, Borger MA (2006). "Infective endocarditis of the tricuspid valve". Journal of cardiac surgery. 21 (6): 603–4. doi:10.1111/j.1540-8191.2006.00313.x. PMID 17073968.
- ^ a b Mitchell RS, Kumar V, Robbins SL, Abbas AK, Fausto N (2007). Robbins Basic Pathology (8th ed.). Saunders/Elsevier. pp. 406–8. ISBN 1-4160-2973-7.
- ^ Tricuspid valve disease Mount Sinai Hospital, New York
- ^ University Circle Inc.
External links
- Anatomy figure: 20:07-04 at Human Anatomy Online, SUNY Downstate Medical Center
- Photo of model at Waynesburg College circulation/tricuspidvalve04
- Cardiac Valve Animations - Perioperative Interactive Education Group - Cardiac Valve Animations
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Anatomy of the heart
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| General |
| Surface |
- base
- apex
- sulci
- coronary
- interatrial
- anterior interventricular
- posterior interventricular
- borders
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| Internal |
- atria
- interatrial septum
- pectinate muscles
- terminal sulcus
- ventricles
- interventricular septum
- trabeculae carneae
- chordae tendineae
- papillary muscle
- valves
- cusps
- atrioventricular septum
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- cardiac skeleton
- intervenous tubercle
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| Chambers |
| Right heart |
- (venae cavae, coronary sinus) → right atrium (atrial appendage, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve of inferior vena cava, valve of coronary sinus) → tricuspid valve → right ventricle (infundibulum, moderator band/septomarginal trabecula) → pulmonary valve → (pulmonary artery and pulmonary circulation)
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| Left heart |
- (pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and systemic circulation)
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| Layers |
| Endocardium |
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| Myocardium |
- Conduction system
- cardiac pacemaker
- SA node
- AV node
- bundle of His
- bundle branches
- Purkinje fibers
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| Pericardial cavity |
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| Pericardium |
- fibrous pericardium
- sternopericardial ligaments
- serous pericardium
- epicardium/visceral layer
- fold of left vena cava
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| Blood supply |
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English Journal
- Pilot candidate gene analysis of patients ≥60 years old with aortic stenosis involving a tricuspid aortic valve.
- Ellis SG, Dushman-Ellis S, Luke MM, Murugesan G, Kottke-Marchant K, Ellis GM, Griffin B, Tuzcu EM, Hazen S.SourceDepartment of Cardiovascular Medicine, Cleveland Clinic, Cleveland, Ohio.
- The American journal of cardiology.Am J Cardiol.2012 Jul 1;110(1):88-92. Epub 2012 Apr 5.
- The potential genetic basis of aortic stenosis in older people is poorly understood. A total of 265 patients with aortic stenosis involving tricuspid aortic valves and 961 controls were genotyped for ≤660 candidate single nucleotide polymorphisms (SNPs). After dividing the patients and controls in
- PMID 22483387
- Massive right atrial myxoma: An unusual presentation in an elderly patient.
- Romeo R, Maugeri C, Ragusa A, Romeo A, Maugeri D, Sorace R.SourceASP 3 Catania, Cardiology Operative Unit, Giarre Hospital, Via Forlanini, I-95014 Giarre, Italy.
- Archives of gerontology and geriatrics.Arch Gerontol Geriatr.2012 Jul;55(1):143-4. Epub 2011 Oct 2.
- Primary heart tumors are rare with an estimated incidence ranging 0.0017-0.19%. Myxoma is the most prevalent primary heart tumor. The right atrium is an unusual location, occurring only in the 15-20% of myxoma cases. We describe the case of a massive right atrial myxoma causing right ventricular inf
- PMID 21962544
Japanese Journal
- 乳用牛の疣贅性心内膜炎から分離された<I>Cardiobacterium hominis</I>
Related Links
- Definition of valva atrioventricularis dextra in the Medical Dictionary. valva atrioventricularis dextra explanation. Information about valva atrioventricularis dextra in Free online English dictionary. What is valva atrioventricularis dextra ...
- The definition information for valva atrioventricularis dextra is provided by Stedman's. You can search our medical dictionary here. Stedman's, part of Lippincott Williams & Wilkins, provides a comprehensive line of health-science ...
★リンクテーブル★
[★]
- 英
- tricuspid valve (Z), TV
- ラ
- valva tricuspidalis
- 同
- 右房室弁 right atrioventricular valve valva atrioventricularis dextra
- 関
- 房室弁
臨床関連
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.
[★]
- 関
- dextral、dextroposition、rightward
[★]
- 関
- AV