Tensor fasciae latae Posterior group Gluteus maximus Origin

Tensor fasciae latae 阔筋膜张肌 髂胫束

Posterior group Gluteus maximus 臀大肌 • Origin: gluteal surface of ilium and dorsal aspect of sacrum • Insertion: gluteal tuberosity of femur and iliotibial tract • Action: extends and laterally rotates thigh at hip joint; raises trunk when the lower limb is fixed

• Gluteus medius 臀中肌 • Gluteus minimus 臀小肌 • Piriformis 梨状肌 suprapiriform foramen 梨状肌上孔 infrapiriform foramen 梨状肌下孔 • Obturator internus 闭孔内肌 • Quadratus femoris 股方肌 • Obturator externus 闭孔外肌

Muscles of thigh Anterior group Sartorius 缝匠肌 • Origin: anterior superior iliac spine • Insertion: upper medial surface of tibia • Action: flexes hip and knee joints; rotates flexed knee medially

Quadriceps femoris 股四头肌 • Origin: – Rectus femoris: anterior inferior iliac spine – Vastus medialis: medial lip of linea aspera – Vastus lateralis: lateral lip of linea aspera – Vastus intermedius: anterior surface of femur • Insertion: tibial tuberosity • Action: extends leg at knee joint; rectus femoris also flexes thigh at hip joint

Medial group • Pectineus 耻骨肌 • Adductor longus 长收肌 • Gracilis 股薄肌 • Adductor brevis 短收肌 • Adductor magnus大收肌 Adduct thigh at hip joint

Posterior group • • • Biceps femoris 股二头肌 Semitendinosus 半腱肌 Semimembranosus 半膜肌 flex the leg at knee joint, extend the thigh at hip joint

Ⅲ Muscles of leg Anterior group • Tibialis anterior 胫骨前肌 • Extensor hallucis longus 拇长伸肌 • Extensor digitorum longus 趾长伸肌 • Peroneus tertius 第三腓骨肌

Lateral group • Peroneus longus 腓骨长肌 • Peroneus brevis 腓骨短肌 plantarflex and evert the foot

Posterior group Superficial layer • Triceps surae小腿三头肌 – Gastrocnemius 腓肠肌 – Soleus 比目鱼肌 Action: flexes knee joint and plantarflexes foot at ankle joint; steadies leg on foot during standing

Deep layer • Popliteus 腘肌 • Flexor digitorum longus趾长屈肌 • Tibialis posterior 胫骨后肌 • Flexor hallucis longus拇长屈肌

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