Origin: Posterior portions of ischial tuberosity and lateral obturator ring
Insertion: Medial surface of greater trochanter of femur, in common with obturator internus
Action: Rotates the thigh laterally; also helps abduct the flexed thigh
Innervation: Nerve to the quadratus femoris or nerve to the obturator internus or both (L4-S1).
Arterial Supply: Inferior gluteal artery
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Lower Extremity
- Adductor Brevis
- Adductor Longus
- Adductor Magnus
- Biceps Femoris – Long Head
- Biceps Femoris – Short Head
- Extensor Digitorum Longus
- Extensor Hallucis Longus
- Flexor Digitorum Longus
- Flexor Hallucis Longus
- Gastrocnemius
- Gluteus Maximus
- Gluteus Medius
- Gluteus Minimus
- Gracilis
- Iliacus
- Inferior Gemellus
- Obturator Externus
- Obturator Internus
- Pectineus
- Peroneus Brevis
- Peroneus Longus
- Peroneus Tertius
- Piriformis
- Plantaris
- Popliteus
- Psoas
- Quadratus Femoris
- Rectus Femoris
- Sartorius
- Semimembranosus
- Semitendinosus
- Soleus
- Superior Gemellus
- Tensor Fascia Lata
- Tibialis Anterior
- Tibialis Posterior
- Vastus Intermedius
- Vastus Lateralis
- Vastus Medialis