双峰驼腕关节解剖

解剖了双峰驼10个腕关节(左右各5个),发现如下一些特征:前臂骨远端关节面上的两条平行嵴由前向后内側斜行,与矢状面之间的夹角约为15度。腕掌背侧韧带不发达,而掌侧的韧带却很宽厚.副腕骨尺腕骨韧带有2条.桡腕骨与中间腕骨之间,第3、4腕骨之间都有独立的小关节形成,后者有时与腕间关节相通.前臂腕关节囊背侧壁很宽松,在关节伸直时,向背侧可拱起形成高约2.0厘米的褶。

Carpal Joints of the Camelus Bactrianus

Ten carpal joints of the camslus bactriauus were dissected. Two paralled ridges on the distal articular surface of the forearm arc oblique tucdio-eaudally, the angle included between those ridges and the sagittal plane is about 15 degrees. The dorsal carpo-metacarpa1 ligg. are not developed, but the pulmar carpometacarpa1 ligg. are very wide and thick. There are 2 accessorio-carpoul nare ligg.in the Camelus bactrianus. There are 2 independent small joints, one between the radiol carpal and intermediate carpal, and the other between the third carpal and fourth carpal which is sometimcs connected with the intercarpa1 joint. The dorsal wall of the capsule of the antebrachiocarpa1 is very loose, whieh forms a fold when the joint exiends.