interventricular septal branches of left-right coronary artery

in·ter·ven·tri·cu·lar sep·tal branch·es of left-right cor·o·nar·y ar·te·ry

(in'tĕr-ven-trik'yū-lăr sep'tăl branch'ĕz left-rīt kōr'ŏ-nar-ē ahr'tĕr-ē) The interventricular septal branches; branches of the anterior and posterior interventricular arteries distributed to the interventricular septum muscle.