noun
obturator externus muscle
Anatomical term for the muscle that externally rotates the thigh.
外閉鎖筋は股関節の外旋に関与する。
The obturator externus muscle is involved in external rotation of the hip joint.
Compound of 外 (outside) + 閉鎖 (closure) + 筋 (muscle), describing its anatomical location and function.