On the development of the aortae, cardinal and umbilical veins, and the other blood vessels of vertebrate embryos from capillaries
On the development of the aortae, cardinal and umbilical veins, and the other blood vessels of vertebrate embryos from capillaries
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DOI：
10.1002/ar.1090030903
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发表时间：
1909-09-01
影响因子：
--
通讯作者：
Evans, HM
中科院分区：
文献类型：
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作者：
Evans, HM
在解释这份报告的有点全面的标题时，我想说，至少目前，我完全省略了心脏、第一弓和头主动脉的发育。但是，另一方面，我将要描述的注射非常清楚地说明了脐肠系膜动脉下方主动脉的所有部分、前主静脉的整个上部以及相当完整的后主静脉和脐静脉的原始形式和发育。除了这些主干之外，我还探索了不同年龄的胚胎和身体不同部位的维管树的其他分支，发现到处都是同样的情况。在过去的二十年里，对脊椎动物胚胎的连续切片进行耐心和彻底的分析，使我们对连续阶段中存在的所有主要维管干的位置、大小和关系有了相当准确的了解。但这些知识，即使是完整的，也不能告诉我们关于血管系统发育方法的很少或根本没有。当一个大的躯干被描述为在体壁或内脏上延伸到一定水平时，我们仍然不知道它是如何到达它的位置的。可能涉及许多流程。
In explanation of the somewhat comprehensive title of this report, I would say that I have omitted entirely, for the present at least, the development of the heart, first arch and cephalic aorb. But, on the other hand, the injections which I shall describe speak with great clearness on the primitive form and development of all that portion of the aorta below the omphalo-mesenteric arteries, of the entire upper portions of the anterior cardinal veins, and quite fully, of the posterior cardinal and umbilical veins. In addition to these primary trunks, I have explored other branches of the vascular tree in embryos of different ages and in various portions of the body and find everywhere the same story.The patient and thoroughgoing analysis of serial sections through vertebrate embryos has, in the last twenty years, given us a fairly accurate idea of the position, size, and relations of all the chief vascular trunks present in successive stages. But such knowledge, even though complete, can tell us little or nothing about the method of development of the vascular system. When a large trunk is described as having extended to a certain level in the body waII or on a viscus we have still no idea of how it reached its position. Many processes could be concerned.