The coronary sinus (from Latin corona ' crown ' [citation needed]) is the largest vein of the heart. [ 1 ] [ 2 ] It drains over half of the deoxygenated blood from the heart muscle into the right atrium .

Nov 3, 2023 · The coronary sinus is the largest cardiac venous structure. It arises from the confluence of the oblique vein (of Marshall) of left atrium and the great cardiac vein. The sinus then courses for about 2 or 3 cm within the inferior atrioventricular groove, between the left atrium and left ventricle.

Nov 17, 2022 · What is the coronary sinus? Read on to learn more about this important blood vessel in the heart, including its location, function, and role in different heart procedures.

Jan 12, 2024 · The coronary sinus is located on the heart’s posterior (behind) surface and is positioned between the left ventricle and the left atrium. All mammals, including humans, are known to have a coronary sinus.

Jan 23, 2025 · The coronary sinus is a large venous structure in the heart that collects deoxygenated blood from the heart’s myocardium.[7] It serves as the main drainage vessel for the coronary veins and channels the blood back into the right atrium.

Jul 24, 2023 · The coronary sinus is the major venous tributary of the greater cardiac venous system; it is responsible for draining most of the deoxygenated blood leaving the myocardium. Given the advancement of interventional cardiac procedures, a comprehensive appreciation of the coronary sinus is essential for furthering the medical care of future ...

Oct 27, 2024 · The coronary sinus develops from one of the two sinus horns of the sinus venosum. The other horn becomes part of the right atrium. The right venous valve of the sinus venosum develops into the Thebesian valve and the Eustachian valve .

Oct 12, 2020 · The coronary sinus is a large vein located in the atrioventricular groove (coronary sulcus) between the left ventricle and atrium of the heart. This vein collects deoxygenated blood from several cardiac veins located around the heart muscle.

Explore the coronary sinus' origin, course, tributaries, and its function of delivering deoxygenated blood from the myocardium to the right atrium.

Oct 17, 2024 · The coronary sinus plays a specialized role in the cardiac circulatory system, acting as a key component in managing myocardial blood flow. As the heart’s primary venous collection channel, it gathers deoxygenated blood from the …