[Usual arrangement and nomenclature of the coronary arteries]

Abstract

The usual distribution of the coronary arteries of the heart as its appears from the study of 60 casts of these vessels is the following:--the right coronary artery gives three right atrial branches, the superior (sinus node artery) medium and inferior branches and three kinds of right ventricular branches : anterior, marginal and inferior. It divides into the posterior descending branch and the posterior left ventricular branch. Its territory is postero-septal.--the left coronary artery divides into 2 branches. The anterior descending artery gives right ventricular, left ventricular (diagonal) and septal branches for the antero-septal territory. The left circumflex gives three left atrial branches, the superior, medium and inferior branches and 1 or 2 left ventricular (lateral) branches for the corresponding lateral territory of the left ventricule.