• coronary
  • The blood supply of the IVS can be variable, but usually has contributions from branches of both the right coronary artery (RCA) and the left coronary artery (LCA). (lww.com)
  • anterior
  • The right bundle branch continues down the right side of the IVS, while the left bundle branch crosses to the left side and splits into anterior and posterior divisions. (lww.com)