窦房结动脉又称“上腔静脉口支”。James 观察到它恒定地穿经窦房结中心,故命名为窦房结动脉。后为国内外学者所沿用。窦房结动脉供应心脏起搏点的血液,若冠状动脉狭窄和闭塞涉及该动脉,必将引起窦房结缺血,导致心律紊乱。由于该动脉行程与心房关系密切,而心脏手术常由心房入路,故有必要深入研究该动脉的来源、走行及分布等情况。 Sinus node arteries, also known as “superior vena cava mouth branch.” James observed that it constantly crosses the center of the sinoatrial node, so named sinoatrial artery. Followed by scholars at home and abroad. Sinus node artery supply heart pacemaker blood, if the coronary artery stenosis and occlusion involving the artery, will cause sinus node ischemia, leading to heart rhythm disorders. Because of the close relationship between the arterial stroke and the atrium, and cardiac surgery often by the atrial approach, it is necessary to study in depth the origin of the artery, walking and distribution.