RIGHT CORONARY- (from the ascending aorta)

Branches:

  • R atrial branch (gives off the SA nodal branch)
  • Conal branch
  • R marginal branch (w/ small cardiac vein)
  • Posterior interventricular artery (PAD) – accompanies middle cardiac vein

LEFT CORONARY- (from ascending aorta)

Branches:

  • Circumflex (gives off L marginal artery)
  • Anterior interventricular artery (LAD) – may give rise to 1-2 diagonal branches across anterior surface of LV. Accompanies the great cardiac vein.

ANASTOMOSES

nodal anastomoses

conus arteriosum

circumflex

anterior interventricular septum

posterior interventricular septum