Coronary Arteries

Question 1

What are Coronary Arteries

Answer 1

The coronary arteries branch off from the aorta, the body’s main artery, just above the aortic valve:
The two main coronary arteries are the left main coronary artery (LMCA) and the right coronary artery (RCA):
Left main coronary artery
This short vessel branches into the left anterior descending artery (LAD) and the circumflex artery. The LAD supplies blood to the front and part of the side of the left ventricle, as well as the interventricular septum. The circumflex artery supplies blood to the side of the left ventricle.
Right coronary artery
This artery supplies blood to the right side of the heart, including the right ventricle, right atrium, and the sinoatrial and atrioventricular nodes. It branches into the right posterior descending artery (PDA) and the acute marginal artery.
The coronary arteries supply oxygen-rich blood to the heart muscle, which is essential for the heart to survive.

Question 2

What are the main coronary arteries

Answer 2

Left main coronary artery
This short vessel branches into the left anterior descending artery (LAD) and the circumflex artery. The LAD supplies blood to the front and part of the side of the left ventricle, as well as the interventricular septum. The circumflex artery supplies blood to the side of the left ventricle.
Right coronary artery
This artery supplies blood to the right side of the heart, including the right ventricle, right atrium, and the sinoatrial and atrioventricular nodes. It branches into the right posterior descending artery (PDA) and the acute marginal artery.

Question 3

First branch from RCA

Right Coronary Artery

Answer 3

Sinoatrial nodal artery: Supplies blood to the sinoatrial node, which contains cells that produce the electrical impulse that makes the heart beat

Question 4

Second branch from RCA

Right Coronary Artery

Answer 4

The conus artery is a branch of the right coronary artery (RCA) that supplies blood to the right ventricle of the heart