Right Coronary Artery (RCA)

VESSEL PATHWAY

The right coronary artery is a branch off of the aorta. It travels along the right atrioventricular groove.

 Aorta  → Right Coronary Artery (RCA)

Anatomical location of the RCA (source)
Anatomical location of the RCA (source)

The RCA branches into the posterior descending artery and the right marginal artery

FUNCTION

This artery supplies blood to the following structures:

  • Sinoatrial node (SA node)
  • Atrioventricular node (AV node)
  • Right ventricle
  • Left ventricle: perfuses the posterior inferior wall. 
CONSEQUENCE OF OCCLUSION

ST changes (depression/elevation): in leads II, III, and aVR

 

Page updated: 11.30.2016