noun ダウンロード 🔗共有 大腿四頭筋 A muscle having four heads, especially the large extensor at the front of the thigh. Examples : "After his soccer game, the athlete stretched his quadriceps to prevent muscle soreness in the front of his thigh. " サッカーの試合後、アスリートは太ももの前側の筋肉痛を防ぐために大腿四頭筋をストレッチしました。 anatomy body physiology medicine AIとチャット語彙ゲーム読解練習