【摘要】 用防腐了的100個中國兒童心臟,20個新鮮心臟,對心臟冠狀動脈的分佈類型作了觀察,其結果如下: 1.冠狀動脈的起點在横的位置以主動脈竇的中央爲最多,佔90.5％,縱的位置是在主動脈竇和主動脈分界綫以下的最多,佔91.5％。左冠狀動脈口的口徑大於右側的是77％,小於右側的4％,左右相等的19％。 2.副冠狀動脈的出現有47％,全部在右側,其中1例副冠狀動脈分佈右心房前壁。 3.在中國兒童冠狀動脈的分枝類型型II佔59％,也就是說左室後壁主要是由右旋枝分佈的較多。 4。前、後降枝分佈室中隔的範圍和兩個降枝的長短成正比例。 5.左冠狀動脈分爲三個主幹(前降枝,斜角枝,左旋枝)的佔56％。 6.縱隔纖維枝有97％來自右旋枝,3％球來自左旋枝。 7.上腔靜脈口枝是心房的一個固定枝,起於右側冠狀動脈的64％,左側的36％。 8.左右冠狀動脈的分枝之間經常存在着吻合。 9.左右心室的血液供給沒有顯明量的差別,只是在動脈口徑上稍有不同。更多还原

【Abstract】 Observations on the coronary arteries of 100 embalmed and 20 fresh hearts of Chinese children were made. The results were as follows: 1. The point of origin of the coronary arteries was found horizontally at the middle third of the aortic sinus in 90.5%, and vertically below the upper margin of the aortic sinus in 91.5%. The diameter of the opening of the left coronary artery was greater than that of the right side in 77%’ lesser than that of the right side in 4%, and equivalent to that of the right side in 19%. 2. The accessory coronary arteries occurred in 47% of the cases, and all were found on the right side. In one case, an accessory coronary artery distributed to the anterior wail of the right atrium. 3. Type II, i.e. the posterior wall of the left ventricle which was mainly supplied by the right circumflex branch, was the most common type of distribution. It occurred in 59%. 4. The interventricular septum was supplied by both the anterior and posterior descending branches, the proportion of which is determined by the length of the two descending branches. 5. The left coronary artery divided into 3 main branches (anterior descending, diagonal, left circumflex) in 56%. 6. Ramus septi fibrosi which originated from the right circumflex was found in 97% and from the left circumflex in 3%. 7. Ramus ostii cavae superioris was a constant branch, originating from the right side in 64% and from the left side in 36%. 8. The difference in number of the blood vessels to the left and right ventricles was not obvious.更多还原