小指伸肌的类型研究

RESEARCH OF TYPES ON THE EXTENSOR DIGITI MINIMI MUSCLE IN MAN

采用成年尸体66(男49,女17)例的132侧上肢,解剖、观察小指伸肌,依其肌腹、远侧肌腱的形态分为五型。具有单一肌腹,远侧肌腱为1支或2支,终于小指者占95.46%。具有单一肌腹,远侧肌腱分别附着于小指和无名指者占3.79%,此型小指伸肌为系统发生的形态变异,具有比较解剖学意义。

The study was made about the extensor digiti minimi muscle by using 132 upper extremities in 66 adult cadavers (49male, 17 female).The muscles were classified into 5 types. In 95.46% of upper extremities each of them had one or two tendons which arose from a single belly and inserted into the little finger.We discovered that the tendons in 3.79% of upper extremities arose from a single belly and inserted into the little finger and ring finger. The discovery has significance in morphology and comparativa antomy.