肺動脈弁
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/11/29 02:31:26」(JST)
[Wiki en表示]
| Pulmonary valve |
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| Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow. |
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| Heart seen from above. |
| Latin |
valva trunci pulmonalis |
| Gray's |
subject #138 532 |
| MeSH |
Pulmonary+Valve |
The pulmonary valve (sometimes referred to as the pulmonic valve) is the semilunar valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps. Similar to the aortic valve, the pulmonary valve opens in ventricular systole, when the pressure in the right ventricle rises above the pressure in the pulmonary artery. At the end of ventricular systole, when the pressure in the right ventricle falls rapidly, the pressure in the pulmonary artery will close the pulmonary valve.
The closure of the pulmonary valve contributes the P2 component of the second heart sound (S2). The right heart is a low-pressure system, so the P2 component of the second heart sound is usually softer than the A2 component of the second heart sound. However, it is physiologically normal in some young people to hear both components separated during inhalation.
Additional images[edit]
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Interior of right side of heart.
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Front of thorax, showing surface relations of bones, lungs (purple), pleura (blue), and heart (red outline). Heart valves are labeled with "B", "T", "A", and "P".
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See also[edit]
External links[edit]
- Media related to Pulmonary valve at Wikimedia Commons
- SUNY Figs 20:07-00
- Adult Congenital Surgery: Pulmonary Valve Replacement
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Anatomy of torso, cardiovascular system: heart (TA A12.1, TH H3.09.01, GA 5.524)
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| General |
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Surface
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base · apex · grooves (coronary/atrioventricular, interatrial, anterior interventricula, posterior interventricular) · surfaces (sternocostal, diaphragmatic) · borders (right, left) · openings of smallest cardiac veins
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Internal
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atria (interatrial septum, musculi pectinati, sulcus terminalis) · ventricles (interventricular septum, trabeculae carneae, chordae tendineae, papillary muscle) · valves · cusps · atrioventricular septum
cardiac skeleton
intervenous tubercle
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| Chambers |
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Right heart
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(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 (conus arteriosus, moderator band/septomarginal trabecula) → pulmonary valve → (pulmonary artery and pulmonary circulation)
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Left heart
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(pulmonary veins) → left atrium (atrial appendage) → mitral valve → left ventricle → aortic valve (aortic sinus) → (aorta and systemic circulation)
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| Layers |
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Endocardium
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heart valves
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Myocardium
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conduction system: cardiac pacemaker · SA node · AV node · bundle of His · Purkinje fibers
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Pericardial cavity
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pericardial sinus
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Pericardium
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fibrous pericardium (sternopericardiac ligaments) · serous pericardium (epicardium/visceral layer) · fold of the left vena cava
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noco/cong/tumr, sysi/epon, injr
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proc, drug (C1A/1B/1C/1D), blte
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English Journal
- Xeno-immunogenicity of ice-free cryopreserved porcine leaflets.
- Seifert M1, Bayrak A2, Stolk M3, Souidi N2, Schneider M2, Stock UA4, Brockbank KG5.
- The Journal of surgical research.J Surg Res.2015 Feb;193(2):933-41. doi: 10.1016/j.jss.2014.10.016. Epub 2014 Oct 17.
- BACKGROUND: Undesirable processes of inflammation, calcification, or immune-mediated reactions are limiting factors in long-term survival of heart valves in patients. In this study, we target the modulatory effects of ice-free cryopreservation (IFC) of xenogeneic heart valve leaflet matrices, withou
- PMID 25454969
- Trends in pulmonary valve replacement in children and adults with tetralogy of fallot.
- O'Byrne ML1, Glatz AC2, Mercer-Rosa L2, Gillespie MJ3, Dori Y3, Goldmuntz E3, Kawut S4, Rome JJ3.
- The American journal of cardiology.Am J Cardiol.2015 Jan 1;115(1):118-24. doi: 10.1016/j.amjcard.2014.09.054. Epub 2014 Oct 16.
- Operative correction of tetralogy of Fallot frequently results in pulmonary insufficiency and chronic volume overload, which have been linked to increased risk for adverse outcomes. No consensus recommendations for the timing of pulmonary valve replacement (PVR) exist. The aim of this study was to e
- PMID 25456860
- Decreased left ventricular (LV) function is associated with hip-fractures.
- Jansen S1, Koster RW2, de Lange FJ2, Goslings JC3, Schafroth MU4, de Rooij SE5, van der Velde N6.
- Archives of gerontology and geriatrics.Arch Gerontol Geriatr.2015 Jan-Feb;60(1):103-7. doi: 10.1016/j.archger.2014.09.002. Epub 2014 Sep 28.
- BACKGROUND: Several risk factors for falls and hip-fractures have been recognized, but controversy still exists toward the importance of structural cardiac abnormalities as a potentially modifiable risk factor for recurrent falls. Aim of this study was to determine the association between echocardio
- PMID 25442509
Related Links
- Looking for online definition of valva trunci pulmonalis in the Medical Dictionary? valva trunci pulmonalis explanation free. What is valva trunci pulmonalis? Meaning of valva trunci pulmonalis medical term. What does valva trunci ? ...
- Pulmonary valve aka Valva trunci pulmonalis in the latin terminology and part of Learn more now! ... Learning anatomy is a massive undertaking, and we’re here to help you pass with flying colours.
★リンクテーブル★
[★]
- 英
- pulmonary valve (Z), PV
- ラ
- valva trunci pulmonalis
- 関
- 大動脈弁、心臓、半月弁