Anatomy and Function of the Coronary Arteries

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Coronary arteries ship blood to the guts muscle. All tissues within the physique want oxygen-rich blood to operate. The center muscle additionally wants it. And oxygen-depleted blood should be carried away. The coronary arteries wrap across the outdoors of the guts. They ship oxygen-rich blood into the guts’s muscle tissues.

Two coronary arteries

The two primary coronary arteries are:

  • Left primary coronary artery. This artery sends blood to the left aspect of the guts muscle. This contains the left ventricle and left atrium. It divides into these branches:

    • Left anterior descending artery. This smaller artery branches off the left coronary artery. It sends blood to the entrance of the left aspect of the guts. It additionally helps ship blood to the center (septum) of the guts.

    • Left circumflex artery. This artery additionally branches off the left coronary artery. It circles across the coronary heart muscle. This artery sends blood to the outer aspect and again of the guts.

  • Proper coronary artery. This artery sends blood to the correct aspect of the guts. This contains the proper ventricle, the correct atrium, and the SA (sinoatrial) and AV (atrioventricular) nodes. These nodes management the guts rhythm. The precise coronary artery divides into smaller branches. One is the correct posterior descending artery. The opposite is the acute marginal artery. It additionally helps ship blood to the center (septum) of the guts.

Issues with the coronary arteries

Since coronary arteries ship blood to the guts muscle, any coronary artery drawback may cause critical well being issues. It reduces the stream of oxygen and vitamins to the guts muscle. This may result in a coronary heart assault and presumably dying. The most typical reason behind coronary heart illness is atherosclerosis. This can be a buildup of plaque within the internal lining of an artery. It causes the artery to grow to be slender or blocked. The causes much less blood to get to the guts tissues.

On-line Medical Reviewer:
Callie Tayrien RN MSN

On-line Medical Reviewer:
Stacey Wojcik MBA BSN RN

On-line Medical Reviewer:
Steven Kang MD



Date Final Reviewed:
4/1/2022




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