短语词组短语extensor digitorum 伸指肌;[解剖]指伸肌;伸指总肌;伸趾肌extensor muscle [解剖]伸肌;伸展肌;伸展;伸肌musculus extensor [解剖]伸肌extensor synergy 伸肌共同运动;协同动作extensor aponeurosis 伸肌腱膜extensor trunk 释义躯干伸肌elbow extensor 肘伸肌 返回 extensor