Rodríguez-Baeza A, Nebot J, Ferreira B, Reina F, Pérez J, Sañudo J R, Roig M
Department of Morphological Sciences (Anatomy and Embryology Unit), Faculty of Medicine, Autonomous University of Barcelona, Bellaterra, Spain.
J Anat. 1995 Oct;187 ( Pt 2)(Pt 2):473-9.
Twenty-three cases with variations in the brachio-antebrachial arterial pattern of the human upper limb are reported. According to the artery which showed a variation, 4 groups were recognised: (1) isolated persistence of the median artery; (2) high origin of the ulnar artery; (3) high origin of the radial artery; and (4) duplication of the brachial artery, either with or without anastomosis at the cubital fossa. In addition, in groups 2, 3 and 4 the median artery may have persisted. Based on these arterial variations an anatomical and embryological correlation was established from a morphogenetic pattern which is proposed as being normal. Thus the terminal branches of the superficial brachial artery take part in the development of the radial, ulnar and median arteries, joining with the trunks of deep origin of these arteries in the primitive axial artery. Regression of the superficial arterial segments located proximal to this anastomosis gives rise to the definitive arterial pattern. Either the total or partial persistence of the superficial arterial segments explains those cases of high origin of either the radial or ulnar arteries as well as the duplications of the brachial artery. We postulate that the persistence of the median artery is independent of the presence or absence of any other variation in the arterial pattern.
本文报告了23例人类上肢肱前动脉模式变异的病例。根据出现变异的动脉，可分为4组：（1）正中动脉孤立性持续存在；（2）尺动脉高位起源；（3）桡动脉高位起源；（4）肱动脉重复，在肘窝处有无吻合。此外，在第2、3和4组中，正中动脉可能持续存在。基于这些动脉变异，从一种被认为是正常的形态发生模式建立了解剖学和胚胎学的相关性。因此，肱浅动脉的终末分支参与桡动脉、尺动脉和正中动脉的发育，在原始轴动脉中与这些动脉的深部起源主干相连。位于该吻合近端的浅动脉段的退化产生了最终的动脉模式。浅动脉段的全部或部分持续存在解释了桡动脉或尺动脉高位起源以及肱动脉重复的那些病例。我们推测正中动脉的持续存在与动脉模式中任何其他变异的存在与否无关。
