The right marginal branch of right coronary artery (or right marginal artery) is the largest marginal branch of the

right coronary artery In the coronary circulation, blood supply of the heart, the right coronary artery (RCA) is an artery originating above the right cusp of the aortic valve, at the Aortic sinus, right aortic sinus in the heart. It travels down the right coronary su ...

. It follows the acute margin of the

heart The heart is a muscular Organ (biology), organ found in humans and other animals. This organ pumps blood through the blood vessels. The heart and blood vessels together make the circulatory system. The pumped blood carries oxygen and nutrie ...

. It supplies blood to both surfaces of the

right ventricle A ventricle is one of two large chambers located toward the bottom of the heart that collect and expel blood towards the peripheral beds within the body and lungs. The blood pumped by a ventricle is supplied by an atrium (heart), atrium, an adjace ...

Structure

The right marginal branch is the largest branch to split off from the

. It often anastomoses with the nearby parallel

posterior interventricular artery In the coronary circulation, the posterior descending artery (PDA), also called the posterior interventricular artery (PIV, PIA, or PIVA), is an artery running in the posterior interventricular sulcus to the apex of the heart where it meets with ...

, which itself is usually a continuation of the right coronary artery.

Variation

The right marginal branch may reach the distal part of the

posterior interventricular sulcus The posterior interventricular sulcus or posterior longitudinal sulcus is one of the two grooves separating the ventricles of the heart (the other being the anterior interventricular sulcus). They can be known as subsinosal interventricular groo ...

Function

The right marginal branch primarily supplies the

Additional images

File:Human heart with coronary arteries new.png, Human heart with coronary arteries

References

External links

* - "Anterior view of the heart."
Image

{{Authority control Arteries of the thorax