双峰驼前肢骨骼解剖

Dissection of Pectoral Limb Skeleton of Bactrian Camel

运用大体解剖学方法,对双峰驼前肢骨骼进行了研究,并与单峰驼、马和牛的前肢骨骼作了比较。双峰驼肩岬冈高、厚,启峰较长;肢骨粗大,其近侧端大结节较小,远侧端内、外侧髁上均无滑液窝,桡尺骨间除了一个前臂近侧骨间隙外,还有两个前臂远侧骨间隙;掌骨由同等发达的第三、四掌骨融合而成;中间腕骨呈楔形;远侧指节骨呈短小的三棱锥体形,其伸腱突、屈腱面均不明显;无远侧籽骨。

The skeletons of the pectoral limb of the Bactrian camel were studied and compared with those of the dromedary, ox and horse with general dissecting method. The characteristics of the skeleton of the Bactrian camel were as follows; the spine of the scapula was high and thick, its acromion was long;os humeri was very massive, large tuberosity on its proximal end was small, and 110 synovial fossa on its lateral and medial epicondyles was found; besides one proximal antebrachial space, there were two distols between the radius and ulna; the metacarpus was fused by the metacarpa Ⅲand metacarpa Ⅳwhich were of equal development; the carpa was wedgy; the phalanx proximalis was short, small, trypyramidy, its extensor process as well as its flexor surface was indistinctivei there was no os sesamoidium distole.