Cornillie P, Simoens P
Department of Morphology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, B-9820 Merelbeke, Belgium.
Anat Histol Embryol. 2005 Dec;34(6):364-72. doi: 10.1111/j.1439-0264.2005.00625.x.
Several items of the development of the caudal vena cava in domestic animals are still controversial. In particular, the origin of the lumbar segment of the caudal vena cava is equivocally described. According to different theories it originates from the right-sided supracardinal, caudal cardinal, sacrocardinal, lateral sympathetic or subcardinal veins. In this review, all five theories are compared with each other and discussed in the light of anatomical variations observed in eight dogs. Species-specific diversity, erratic observations because of technical artefacts, and biased interpretation of the original data are three major reasons for the dissimilarity between the five theories, but they cannot explain all differences. Further studies by using modern techniques such as microvascular corrosion casting and non-invasive three-dimensional microtomography are necessary to better understand the normal development and to explain the variations in domestic animal species.
家畜尾腔静脉发育的几个方面仍存在争议。特别是，尾腔静脉腰段的起源描述不明确。根据不同理论，它起源于右侧上主静脉、尾主静脉、骶主静脉、外侧交感静脉或下主静脉。在本综述中，将这五种理论相互比较，并根据在八只狗身上观察到的解剖变异进行讨论。物种特异性差异、技术假象导致的不稳定观察结果以及对原始数据的偏差解释是这五种理论存在差异的三个主要原因，但它们无法解释所有差异。有必要采用微血管铸型和无创三维显微断层扫描等现代技术进行进一步研究，以更好地理解正常发育过程并解释家畜物种的变异情况。
