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- Q7525154 subject Q7047025.
- Q7525154 abstract "The sinuatrial nodal artery (or more commonly sinoatrial nodal artery) is an artery of the heart which supplies the sinoatrial node, and arises from the right coronary artery in around 60% of people. In about 40% of cases, the sinoatrial artery is a branch of the left coronary artery or one of its branches. The origin of the sinoatrial node artery is not related to coronary artery dominance, which is which side provides the circulation to the back of the heart. In contrast, the atrioventricular nodal branch is dependent on coronary artery dominance.The sinoatrial node surrounds the sinoatrial artery, which can run centrally ( in 70% of individuals ) or off center within the node. In less than 1% of humans, the artery has an anomalous origin directly from the coronary sinus, descending aorta, or distal right coronary artery. In more than 50% of human hearts, the artery actually courses close to the superior aspect of the interatrial septum.A left S-shaped sinoatrial artery, originating from the proximal left circumflex or LCx artery, has been described as a common variant in approximately 10% of human hearts. . This artery is larger than normal and supplies a good part of the left atrium, including part of the sinoatrial node and the atrioventricular nodal areas. In this variant, the artery courses in the sulcus between the left superior pulmonary vein and the left atrial appendage where it could be susceptible to injury during catheter or surgical ablation procedures on the left atrium, especially for atrial fibrillation ablation.".
- Q7525154 dorlandsPrefix "r_02".
- Q7525154 dorlandsSuffix "12691184".
- Q7525154 thumbnail Sinoatrial_node_2_low_mag.jpg?width=300.
- Q7525154 wikiPageWikiLink Q1072.
- Q7525154 wikiPageWikiLink Q1074839.
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- Q7525154 wikiPageWikiLink Q629460.
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- Q7525154 wikiPageWikiLink Q7047025.
- Q7525154 wikiPageWikiLink Q744391.
- Q7525154 wikiPageWikiLink Q7543026.
- Q7525154 wikiPageWikiLink Q9655.
- Q7525154 dorlandspre "r_02".
- Q7525154 dorlandssuf "12691184".
- Q7525154 latin "Ramus nodi sinuatrialis arteriae coronariae dextrae".
- Q7525154 name "Sinoatrial nodal artery".
- Q7525154 type AnatomicalStructure.
- Q7525154 type Artery.
- Q7525154 type Thing.
- Q7525154 type Q4936952.
- Q7525154 comment "The sinuatrial nodal artery (or more commonly sinoatrial nodal artery) is an artery of the heart which supplies the sinoatrial node, and arises from the right coronary artery in around 60% of people. In about 40% of cases, the sinoatrial artery is a branch of the left coronary artery or one of its branches. The origin of the sinoatrial node artery is not related to coronary artery dominance, which is which side provides the circulation to the back of the heart.".
- Q7525154 label "Sinoatrial nodal artery".
- Q7525154 depiction Sinoatrial_node_2_low_mag.jpg.
- Q7525154 name "Ramus nodi sinuatrialis arteriae coronariae dextrae".
- Q7525154 name "Sinoatrial nodal artery".