Vascularization of the heart

The two coronary arteries of the heart, located under the epicardium, are the first branches of the ascending aorta.

Caliber : 3,5 mm.

The right coronary artery arises above the right semilunar valve of the aorta.

• It passes between the pulmonary trunk and the right atrium.
• It runs around the right edge of the heart, crossing the coronary sulcus.
• It continues into the posterior interventricular groove.
• It then anastomoses with the left coronary artery.

• The right branch of the arterial cone
• The artery of the sinu-atrial node
• The right atrial branch
• the right anterior ventricular arteries
• The anterior right atrial branch
• The right marginal artery
• The intermediate atrial branch
• The posterolateral ventricular branch
• The retroventricular branch
• The artery of the atrioventricular node
• Posterior interventricular septal arteries

It arises above the left semilunar valve of the aorta.

• She is moving forward.
• It curves backwards and to the left of the pulmonary trunk and passes under the left auricle.
• It travels to the anterior interventricular groove to become the anterior interventricular artery.
• This last one bypasses the incisure of the heart to end in the posterior interventricular groove where it anastomoses with the right coronary artery.

• The artery of the sinu-atrial node (inconstant)
• The left branch of the arterial cone
• The left anterior atrial branch
• Anterior interventricular septal branches
• The 2 to 9 left anterior ventricular arteries including the diagonal artery
• Circumflex artery:
  • The left marginal artery
  • The intermediate atrial branch
  • The posterior branch of the left ventricle
  • Posterior atrial artery

Marie Messager
Osteopath in Versailles
78 - Yvelines