An anomalous case of the flexor carpi radialis with an excessive muscular bundle.
An anomalous case of the flexor carpi radialis with an excessive muscular bundle.
复制标题
桡侧腕屈肌异常，肌束过多。
DOI：
10.1007/s12565-019-00519-w
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Bando Y.
中科院分区：
文献类型：
--
作者：
Zhou M;Ishizawa A;Akashi H;Suzuki R;Kanatsu Y;Abe H;Bando Y.
桡侧腕屈肌的变异与过度肌肉束被发现在右前臂的日本男性尸体。桡腕屈肌有两个头，内侧的头起源于肱骨内侧上髁，另一个是一种变异的过度肌束，起源于肱二头肌肌腱内侧边缘深处的二头肌腱膜。在旋前圆肌和桡侧腕屈肌外侧头之间也有肌肉滑动。桡侧腕屈肌终腱的止点也有变异，不仅止点于第二掌骨基部，而且止点于舟状骨近端表面和斜方结节。过多的肌束可能是胚胎发育早期连接肱二头肌远端部分和桡侧腕屈肌起始部分的残留肌肉滑移。
A variation of the flexor carpi radialis with an excessive muscular bundle was found on the right forearm of a Japanese male cadaver. The flexor carpi radialis had two heads, medial one arising from the medial epicondyle of the humerus, and the other, a variant excessive muscular bundle, arising from the bicipital aponeurosis deep at the medial edge of the tendon of biceps brachii. There was also a muscular slip between the pronator teres and lateral head of flexor carpi radialis. The insertion of the ending tendon of the flexor carpi radialis was also variant, which was not only inserted into the base of the second metacarpal bone, but into the proximal surface of the scaphoid and the tubercle of trapezium. The excessive muscular bundle might be a residual muscular slip which connects between the distal part of the biceps brachii and the initial part of the flexor carpi radialis during the early embryonic development.