Where does blood go from coronary sinus?

Where does blood go from coronary sinus?

Where does blood go from coronary sinus?

The coronary sinus receives drainage from most epicardial ventricular veins, including the oblique vein of the left atrium (and other left and right atrial veins), the great cardiac vein, the posterior vein of the left ventricle, the left marginal vein, and the posterior interventricular vein.

What’s the function of the coronary sinus?

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.

Which artery travels with the coronary sinus?

The great cardiac vein originates at the cardiac apex, travels through the anterior interventricular and then to the atrioventricular groove. It receives blood from the left marginal vein and other tributaries that drain both ventricles and the left atrium, and empties into the coronary sinus at its origin.

When does blood flow into coronary arteries?

Blood flow into the coronary arteries is greatest during ventricular diastole when aortic pressure is highest and it is greater than in the coronaries.

Where is the coronary sinus located and what is its function?

The coronary sinus is a large venous structure located on the posterior aspect of the left atrium, coursing within the left atrioventricular groove. The function of the coronary sinus is to drain the venous blood from the majority of the heart.

Where does coronary sinus open?

atrium
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 of the coronary sinus (valve of Thebesius).

What is the difference between coronary sulcus and coronary sinus?

The structure contains the trunks of the nutrient vessels of the heart, and is deficient in front, where it is crossed by the root of the pulmonary trunk. On the posterior surface of the heart, the coronary sulcus contains the coronary sinus….

Coronary sulcus
Latin sulcus coronarius
TA98 A12.1.00.011
TA2 3945
FMA 7174

Does the coronary sinus have a valve?

The valve of the coronary sinus (Thebesian valve) is a semicircular fold of the lining membrane of the right atrium, at the orifice of the coronary sinus. It is situated at the base of the inferior vena cava. The valve may vary in size, or be completely absent. This valve may be double or it may be cribriform.

Which vein continues as the coronary sinus?

great cardiac vein
The CS lies in the sulcus between the left atrium and ventricle and is a continuation of the great cardiac vein from the valve of the great cardiac vein to the ostium of the CS as it terminates in the right atrium.

Which Coronary artery disease is caused due to narrowing of the lumen of arteries?

Coronary artery disease is caused by atherosclerosis. Atherosclerosis is the buildup of plaque inside your arteries. Plaque consists of cholesterol, fatty substances, waste products, calcium and the clot-making substance fibrin. As plaque continues to collect on your artery walls, your arteries narrow and stiffen.

What are the major coronary veins?

Coronary veins

  • great cardiac vein.
  • middle cardiac vein.
  • small cardiac vein.
  • posterior vein of the left ventricle.
  • vein of Marshall (oblique vein of the left atrium)

    What is the function of the coronary sinus?

    Is the coronary sinus a vein or artery?

    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 and left atrium.

    Why is it called coronary sinus?

    The name comes from the Latin corona, meaning crown, since this vessel forms a partial circle around the heart. The coronary sinus drains into the right atrium, at the coronary sinus orifice, an opening between the inferior vena cava and the right atrioventricular orifice or tricuspid valve.