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The valve of the coronary sinus is a thin, semilunar (half-moon-shaped) valve located on the anteroinferior part of the opening into the right atrium. [5] It is formed by a semicircular fold of the lining membrane of the right atrium. It is situated at the base of the inferior vena cava. [citation needed]
The coronary sinus commences at the union of the great cardiac vein, and the oblique vein of the left atrium. [1] [3] [4] The origin of the coronary sinus is marked by the Vieussens valve of the coronary sinus which is situated at the endpoint of the great cardiac vein. [1]
The Vieussens valve of the coronary sinus is a prominent [1] valve at the end of the great cardiac vein, marking the commencement of the coronary sinus. [2] [1] It is often a flimsy valve composed of one to three leaflets. It is present in 80-90% of individuals.
The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...
It is an anatomical area located at the base of the right atrium, and its boundaries are the coronary sinus orifice, tendon of Todaro, and the septal leaflet of the right atrioventricular valve (also known as the tricuspid valve). [2] It is anatomically significant because the atrioventricular node is located at the apex of the triangle. The ...
Upon reaching the posterior surface of the heart, [3] the great cardiac vein merges with the oblique vein of the left atrium to form the coronary sinus. [2] [3] At the junction of the great cardiac vein and the coronary sinus, there is typically a valve present. This is the Vieussens valve of the coronary sinus. [2]
The function of the right heart, is to collect de-oxygenated blood, in the right atrium, from the body via the superior vena cava, inferior vena cava and from the coronary sinus and pump it, through the tricuspid valve, via the right ventricle, through the semilunar pulmonary valve and into the pulmonary artery in the pulmonary circulation ...
Valve of coronary sinus; Valve of inferior vena cava; Ventricle (heart) This page was last edited on 31 August 2024, at 12:59 (UTC). Text is available under the ...