The atrioventricular nodal artery in the human heart.

Studies were performed on 120 hearts taken from adult cadavers of both sexes. In the study,. prepared and corrosion technique was used. Arteries were filled with vinyl polichloride or Plastogen G through the aorta. The examined vessels were dissected and either partly, or totally etched in the concentrated hydrochloric acid soda lye. The arterial blood supply of the atrioventricular node arose in 108 (90%) of the hearts from the right coronary artery and in 12 (10%) of the hearts from the left coronary artery.