窦房结虽然 Keith和 Flack正确地描述了窦房结的位置及其显微镜下的结构,Lewis和Oppenheimer所进行的仔细研究,确定了窦房结作为心脏起搏点的功能。他们在狗的心脏上,正确地描绘出窦房结是位于腔-房连接处的外侧,作者及其他学者发现在人体心脏中亦确是如此。但由于将窦房结描写成为环绕右心耳嵴与上腔静脉连接处的马蹄形结 Sinus node Although Keith and Flack correctly describe the location of the sinus node and its microscopic structure, careful studies by Lewis and Oppenheimer identified the function of the sinus node as a pacemaker. On the dog’s heart, they rightly portrayed that the sino-atrial node is outside the lumen-to-hus junction, and the authors and other scholars found it to be true in the human heart. However, the description of the sinus node becomes a horseshoe knot around the junction of the right auricle crest and the superior vena cava