Valve of the coronary sinus

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Valve of the coronary sinus
Interior of right side of heart. (Valve of the coronary sinus labeled at bottom left.)
Latin valvula sinus coronarii
Gray's subject #138 531
Dorlands/Elsevier v_02/12844606

The valve of the coronary sinus (Thebesian valve) is a semicircular fold of the lining membrane of the atrium, at the orifice of the coronary sinus. The valve may vary in size, or be completely absent.

It may prevent the regurgitation of blood into the sinus during the contraction of the atrium.

This valve may be double or it may be cribriform.

[edit] Reference

  • P. Felle, J. G. Bannigan. Anatomy of the valve of the coronary sinus (thebesian valve). Clinical Anatomy. Vol. 7 (1), 10-12.

[edit] External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.

Cardiovascular system - Heart - edit
atria (interatrial septum, musculi pectinati) | ventricles (interventricular septum, trabeculae carneae, chordae tendinaepapillary muscle) | valves

base | apex | grooves (coronary/atrioventricular, interatrial, anterior interventricula, posterior interventricular) | surfaces (sternocostal, diaphragmatic) | borders (right, left)

right heart(vena cavaecoronary sinus) → right atrium (auricle, fossa ovalis, limbus of fossa ovalis, crista terminalis, valve of the inferior vena cava, valve of the coronary sinus) → tricuspid valve → right ventricle (conus arteriosus, moderator band/septomarginal trabecula)  → pulmonic valve  → (pulmonary artery and pulmonary circulation)

left heart: (pulmonary veins)left atrium (auricle) → mitral valveleft ventricleaortic valve (aortic sinus) → (aorta and systemic circulation)

pericardium  (sinus) | epicardium | endocardium | myocardium | cardiac skeleton (fibrous trigone, fibrous rings)

conduction systemcardiac pacemaker | Purkinje fibers | bundle of His | SA node | AV node