1.The obturator cells are trichoid.

1.珠孔塞细胞呈毛状。

2.The nerve preramus L4 , the femoral nerve, the obturator nerve and the communicating branch are liable to injury in the front of the ligamentum iliolumbale.

2.L4前、、孔和交通在髂腰韧带前方易损伤。