Lower Muscles OIA

tensor fasciae latae

origin: ilium insertion: iliotibial tract action: flex thigh

Sartorius

origin: ilium insertion: tibia action: flex thigh

iliopsoas

origin: ilium insertion: femur action: flex thigh

adductor brevis

origin: pubis insertion: femur action: adduct thigh

adductor longus

origin: pubis insertion: femur action: adduct thigh

adductor magnus

origin: pubis insertion: femur action: adduct thigh

Pectineus

origin: pubis insertion: femur action: adduct thigh

Gracilis

origin: pubis insertion: tibia action: adducts thigh

gluteus maximus

origin: ilium insertion: femur action: abduct thigh

gluteus Medius

origin: ilium insertion: femur action: abduct thigh

gluteus Minimus

origin: ilium insertion: femur action: abduct thigh

Piriformis

origin: sacrum insertion: femur action: abduct thigh

Quadratus Femoris

origin: ischium insertion: femur action: laterally rotate thigh

rectus femoris

origin: ilium insertion: femur action: extend leg

vastus lateralis

origin: femur insertion: tibia action: extend leg

vastus medialis

origin: femur insertion: tibia action: extend leg

vastus intermedius

origin: femur insertion: tibia action extend leg

biceps femoris long head

origin: ischium insertion: fibula action: flex leg

biceps femoris short head

origin: femur insertion: fibula action: flex leg

Semitendinosus

origin: ischium insertion: tibia action: flex leg

Semimembranosus

origin: ischium insertion: tibia action: flex leg

tibialis anterior

origin: tibia insertion: tarsal action: dorsiflex foot

Extensor Hallucis Longus

origin: fibula insertion: phalanx action: dorsiflex foot

Extensor Digitorum Longus

origin: fibula insertion: phalanges action: dorsiflex foot

Fibularis Longus

origin: fibula insertion: tarsal action: evert foot

Fibularis Brevis

origin: fibula insertion: metatarsals action: evert foot

Fibularis tertius

origin: fibula insertion: metatarsals action: evert foot

Tibialis Posterior

origin: tibia insertion: metatarsals action: invert foot

Flexor Digitorum Longus

origin: tibia insertion: phalanges action: invert foot, flex digits II-V

Flexor Hallucis Longus

origin: fibula insertion: phalanx action: flex digit I

Gastrocnemius: Medial & Lateral Heads

origin: femur insertion: tarsal action: plantar flex foot

Plantaris

origin: femur insertion: tarsal action: plantar flex foot

soleus

origin: tibia insertion: tarsal action: plantar flex foot