Lower Extremity Muscle Atlas
Michael L. Richardson, M.D. source University of Washington, Radiology Department

Adductor Brevis
Adductor Longus
Adductor Magnus
Biceps Femoris-Long Head
Biceps Femoris-Short Head
Extensor Digitorum Longus
Flexor Digitorum Longus
Flexor Hallucis Longus
Gastrocnemius
Gluteus Maximus
Gluteus Medius
Gluteus Minimus
Gracilis
Iliopsoas
Obturator Externus
Obturator Internus
Pectineus
Peroneus Brevis
Peroneus Longus
Peroneus Tertius
Piriformis
Plantaris
Popliteus
Quadratus Femoris
Rectus Femoris
Sartorius
Semimembranosus
Semitendinosus
Soleus
Superior Gemellus
Tensor Fascia Lata
Tibialis Anterior
Tibialis Posterior
Vastus Intermedius
Vastus Lateralis
Vastus Medialis

Pectineus

Origin Pecten pubis and pectineal surface of the pubis Insertion Pectineal line of femur Action Adducts the thigh and flexes the hip joint Innervation Femoral nerve usually, although it may sometimes receive additional innervation from the obturator nerve as well Arterial Supply Medial circumflex femoral branch of femoral artery and obturator artery The medical illustrations contained in this online atlas are copyrighted © 1997 by the University of Washington.