Coronary artery

In medicine, the coronary arteries are the arteries that supply blood to the heart.

The coronary arteries on the anterior surface of the heart.

Left main coronary

• Left anterior descending (LAD)
  • Branches are called the septals and diagonals
• Ramus intermedius arises from the left main between the LAD and the circumflex in some people.
• Circumflex
  • Branches are called the obtuse marginals
  • In a minority of people, the circumflex provides the posterior descending artery.

The coronary arteries on the posterior surface of the heart.

Right coronary

• In most people, the right coronary provides the posterior descending artery.