在教学过程中见到一例食指固有伸肌缺如,现将观察结果报导如下:本例出现于一成年男尸右侧上肢.解剖中发现前臂伸肌群中缺少食指固有伸肌,但于手背发现有一短肌,此短肌起于腕骨的背面,肌腹长5.4厘米,以后移行于肌腱,最后参与构成食指的指背腱膜. In the teaching process to see an example of absence of inherent extensor abdominis, the observation is now reported as follows: This example appears in the right upper limb of an adult male corpus in the forearm extensor group found in the absence of native extensor, but in the back Found a short muscle, this short muscle from the back of the carpal bones, abdominal muscle 5.4 cm long, later migrate in the tendon, and finally participate in the formation of the index finger dorsal aponeurosis.