Henneberg M, George B J
Department of Anatomy and Human Biology, University of the Witwatersrand Medical School, Parktown, South Africa.
J Anat. 1992 Feb;180 ( Pt 1)(Pt 1):185-8.
Observations of the presence of the median artery, providing substantial blood supply to the hand, were conducted on 96 dissected forearms of 15 adult African females and 49 adult males. The artery has a much higher incidence (27.1%) than previously reported by any author. There is no significant difference in its occurrence between sexes, nor between right and left limbs. The artery seems to occur more often bilaterally than unilaterally. The presence of the artery is not related to age. From a theoretical standpoint it is difficult to accept that a structure present in more than 1 in 4 of individuals should be considered an 'anomaly' or a 'variant'. A different approach to description of normal human anatomy is therefore necessary--that of presenting alternative anatomical patterns of equal standing rather than a single 'normal' pattern.
对15名成年非洲女性和49名成年男性的96条解剖前臂进行了观察，以确定正中动脉的存在情况，该动脉为手部提供大量血液供应。该动脉的发生率（27.1%）比以往任何作者报道的都要高得多。其在性别之间以及左右肢体之间的出现率没有显著差异。该动脉似乎双侧出现的情况比单侧出现更为常见。动脉的存在与年龄无关。从理论角度来看，很难接受在超过四分之一的个体中存在的结构应被视为“异常”或“变异”。因此，有必要采用一种不同的方法来描述正常人体解剖结构——即呈现具有同等地位的替代解剖模式，而不是单一的“正常”模式。
