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作者观察了200个心脏的冠状动脉得到如下的结果:(一)左右冠状动脉开口于窦内者占首位(左,66.0%;右,84.5%)。开口于窦外者次之(左,26.5%;右,11.0%)。开口于窦边者更次之(左,6.5%;右,3.0%)。(二)同一个心脏的左右冠状动脉皆开口于窦内者占首位(60.5%)。左冠状动脉开口于左窦的窦外,右冠状动脉开口于右窦的窦内者次之(18.0%)。左右冠状动脉皆开口于相应的窦的窦外者更次之(6.5%)。(三)左冠状动脉具有一短干者有97.9%,占首位,其平均长度为9.0毫米。6—8毫米长的干出现率为最高,其中7毫米长的干最多(11.8%)。(四)各类型中,第一类型出现率最高(44.5%),第三类型次之(19.0%),第二类型再次之(15.5%)。(五)左冠状动脉粗于右冠状动脉者占首位(62.6%),右冠状动脉粗于左冠状动脉者次之(23.5%),左右冠状动脉同等粗细者更次之(14.0%)。其粗细与二动脉的分布类型有着密切关系。(六)前降枝越过心尖而分布于膈面者甚多(74.0%),后降枝越过心尖分布于胸肋面者少见(2.0%)。
The authors looked at the coronary arteries of 200 hearts and found the following: (a) Left and right coronary arteries predominated in the sinus (66.0% left; 84.5% right). Openings outside the sinus were followed (left, 26.5%; right, 11.0%). Openings in the sinuses were followed (left, 6.5%; right, 3.0%). (B) the same heart around the coronary artery are open in the first place (60.5%). The left coronary artery was opened outside the sinus of the left sinus, followed by the right coronary artery within the sinus of the right sinus (18.0%). Left and right coronary arteries are more open to the corresponding sinus sinus (6.5%). (C) The left coronary artery has a short dry 97.9%, accounting for the first place, the average length of 9.0 mm. The highest incidence of dryness occurred in the 6-8 mm long, with the most dry of 7 mm long (11.8%). (4) Among the various types, the first type appeared the highest rate (44.5%), the third type (19.0%) and the second type (15.5%). (5) The left coronary artery is more common than the right coronary artery (62.6%), the right coronary artery is larger than the left coronary artery (23.5%), followed by the right coronary artery (14.0%). The thickness and the distribution of the two types of arteries have a close relationship. (F) The anterior descending branch across the apex and distributed in the diaphragm surface are many (74.0%), after the descending branch over the apical distribution in the thoracic surface is rare (2.0%).