What Is The Coronary Sinus

It is present in all mammals including humans. The coronary sinus is a collection of smaller veins that merge together to form the sinus or large vessel which is located along the heart s posterior rear surface between the left ventricle.

Dilated Coronary Sinus Dr S Venkatesan Md

The coronary sinus is one of the blood vessels which drains deoxygenated blood into the right atrium of the heart.

What is the coronary sinus. This atrial ostium can be partially covered by a thebesian valve although the anatomy of this valve is highly variable. Chambers of the heart the body respectively and the coronary sinus draining blood from the heart itself. Coronary sinus the dilated terminal portion of the great cardiac vein receiving blood from other veins draining the heart muscle and emptying into the right atrium.

In human cardiovascular system. The coronary sinus is a collection of veins joined together to form a large vessel that collects blood from the heart muscle. The coronary sinus empties directly into the right atrium near the conjunction of the posterior interventricular sulcus and the coronary sulcus crux cordis area located between the inferior vena cava and tricuspid valve.

The coronary sinus is located in the posterior portion of the coronary sulcus on the diaphragmatic or posterior surface of the heart. The right ventricle the right inferior portion of the heart is the chamber from which the pulmonary artery carries blood to the lungs. The coronary sinus defect consists of an interatrial communication through the orifice of the coronary sinus with absence of the usually adjacent walls of the coronary sinus and left atrium.

A venous channel that is derived from the sinus venosus is continuous with the largest of the cardiac veins receives most of the blood from the walls of the heart and empties into the right atrium first known use of coronary sinus 1831 in the meaning defined above. Blood flows from the right atrium to the right ventricle. It delivers less oxygenated blood to the right atrium as do the superior and inferior venae cavae.

Once the blood enters the right atrium it can be pumped through the heart and lungs to acquire oxygen so that it can be returned to the circulatory system to supply oxygen to the cells. Definition of coronary sinus. A short trunk receiving most of the veins of the heart running in the posterior part of the coronary sulcus and emptying into the right atrium between the inferior vena cava and the atrioventricular orifice.

Https Encrypted Tbn0 Gstatic Com Images Q Tbn 3aand9gcqyaiab0kxhrmadpffh X6wrfnmagfyey6qyxkxr8j92sc1cj2b Usqp Cau