Coronary sinus: Anatomy, tributaries, drainage | Kenhub
Nov 3, 2023 · It opens into the right atrium between the opening of inferior vena cava, the fossa ovalis and the right atrioventricular orifice. The coronary sinus is often guarded by a thin, semicircular endocardial fold, also known as the Thebesian valve.
Coronary sinus - Wikipedia
It passes across the backside of the heart along a groove between left atrium and left ventricle, then drains into the right atrium at the orifice of the coronary sinus (which is usually guarded by the valve of coronary sinus).
Coronary sinus - Structure, Location, Function, Anatomy
Nov 7, 2024 · The opening of the coronary sinus into the right atrium is guarded by a small valve, the Thebesian valve, which helps regulate the flow of blood from the coronary sinus into the atrium. The valve prevents backflow into the coronary sinus during atrial contraction, thus ensuring efficient venous drainage and cardiac function. ...
Anatomy, Thorax, Coronary Sinus - StatPearls - NCBI Bookshelf
Jul 24, 2023 · The coronary sinus continues along the left atrioventricular groove until it reaches the Thebesian valve, which is located at the orifice of the coronary sinus as it drains into the right atrium. The Thebesian valve prevents regurgitant blood flow from the right atrium from entering the coronary sinus during diastole.
Coronary Sinus - The Definitive Guide | Biology Dictionary
Oct 12, 2020 · Between the inferior vena cava and the tricuspid valve that stops blood from regurgitating from the right ventricle into the right atrium is the opening that marks the start of the coronary sinus. This opening is called the ostium and is partially covered by the Thebesian valve.
Coronary Sinus | Complete Anatomy - Elsevier
The coronary sinus sits between the inferior vena cava and the atrioventricular opening between the right atrium and ventricle. The inner opening of the coronary sinus may be covered by the Thebesian valve (Standring, 2016). The great, middle, …
Opening of coronary sinus - e-Anatomy - IMAIOS
The coronary sinus opens into the atrium, between the orifice of the inferior vena cava and the atrioventricular opening. The opening of coronary sinus returns blood from the substance of the heart and is protected by a semicircular valve, the valve …
19.1 Heart Anatomy – Anatomy & Physiology - Open Educational …
Immediately superior and slightly medial to the opening of the inferior vena cava on the posterior surface of the atrium is the opening of the coronary sinus. This thin-walled vessel drains most of the coronary veins that return systemic blood from the heart ( Figure 19.1.5 ).
Coronary Sinus - an overview | ScienceDirect Topics
The coronary sinus is the receptacle for the majority of the epicardial veins, including the oblique vein, the inferior vein of the left ventricle, the great cardiac vein, the left marginal vein, anterior interventricular vein, and the inferior interventricular vein [30, Mazur et al., 2019].
Coronary sinus: Anatomy, function, and significance - Medical News Today
Nov 17, 2022 · The coronary sinus describes a major coronary vein located in the rear section of the heart. Many smaller cardiac veins connect to it to make it the largest vein of the heart.