name the two major artery originating from human heart
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Answer:
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Explanation:
Structure and Function
There are two primary coronary arteries, the right coronary artery (RCA) and left main coronary artery (LMCA). Both of these originate from the root of the aorta. The RCA emerges from the anterior ascending aorta and supplies blood primarily to the right atrium, right ventricle.
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Answer:
Explanation:
There are two primary coronary arteries, the right coronary artery (RCA) and left main coronary artery (LMCA). Both of these originate from the root of the aorta. The RCA emerges from the anterior ascending aorta and supplies blood primarily to the right atrium, right ventricle. The sinoatrial nodal artery is a branch of the RCA that supplies the SA node. The RCA also supplies the AV node via a septal perforating branch in 90% of people.[1] The RCA then classically descends into smaller branches including the right posterior descending artery (PDA) and acute marginal artery. The posterior descending artery is responsible for blood supply to the posterior one-third of the interventricular septum. The left anterior descending artery (LAD) supplies the anterior two-thirds of the septum.[2] The LAD is one of two major branches of the LMCA, with the other being the left circumflex (LCx) coronary arteries. Combined, these two supply blood to the left atrium and left ventricle. The circumflex artery is responsible for blood supply to the left atrium and the posterior-lateral aspect of the left ventricle while the LAD supplies blood to the anterior portion of the left ventricle. Other small branches of the coronary arteries are the obtuse marginal artery (OMA), diagonals, and septal perforator (SP).