Right coronary artery (RCA) [1]:

Supply:

Parts of the lateral and posterior wall, atria, sinus and AV node

Branches:

• Before crux cordis:
  
  
  
  • Atrial branches: right atrial branches [2]
    
  • Right ventricular branches [3]
    
  • Marginal branches [4]

Division at the crux cordis:

• Posterior interventricular branch [5]
  
• Posterior lateral branches (one to three branches) [6]