Lower Extremity Muscle Exam (correct)

iliacus action 1

flexion

iliacus origin

ilium

iliacus insertion

femur

psoas major action 1

flexion

psoas major origin

thoracic and lumbar vertebrae and sacrum

psoas major insertion

femur

rectus femoris action 3

hip flexion, anterior pelvic tilt, knee extension

rectus femoris origin

ilium

rectus femoris insertion

tibia

sartorius action 6

hip flexion, hip abduction, hip external rotation, anterior pelvic tilt, knee flexion, knee internal rotation

sartorius origin

ilium

sartorius insertion

tibia

pectineus action 4

flexion, adduction, external rotation, anterior pelvic tilt

pectineus origin

pubis

pectineus insertion

femur

tensor fascia latae action 6

hip flexion, hip abduction, hip internal rotation, anterior pelvic tilt, lateral pelvic tilt, knee external rotation

tensor fascia latae origin

ilium

tensor fascia latae insertion

tibia

gluteus maximus action 6

extension, abduction, adduction, external rotation, posterior pelvic tilt, horizontal abduction

gluteus maximus origin

ilium, sacrum, coccyx

gluteus maximus insertion

femur

gluteus medius action 8

abduction, internal rotation, lateral pelvic tilt, flexion, extension, anterior pelvic tilt, posterior pelvic tilt, horizontal abduction

gluteus medius origin

ilium

gluteus medius insertion

femur

gluteus minimus action 6

abduction, internal rotation, lateral pelvic tilt, flexion, anterior pelvic tilt, horizontal abduction

gluteus minimus origin

ilium

gluteus minimus insertion

femur

inferior gemellus action 2

abduction, external rotation

inferior gemellus origin

ischium

inferior gemellus insertion

femur

superior gemellus action 2

abduction, external rotation

superior gemellus origin

ischium

superior gemellus insertion

femur

piriformis action 3

abduction, external rotation, horizontal abduction

piriformis origin

sacrum

piriformis insertion

femur

biceps femoris (long head) action 5

hip extension, hip external rotation, posterior pelvic tilt, knee flexion, knee external rotation

biceps femoris (long head) origin

ischium

biceps femoris (long head) insertion

tibia and fibula

semimembranosus action 5

hip extension, hip internal rotation, posterior pelvic tilt, knee flexion, knee internal rotation

semimembranosus origin

ischium

semimembranosus insertion

tibia

semitendinosus action 5

hip extension, hip internal rotation, posterior pelvic tilt, knee flexion, knee internal rotation

semitendinosus origin

ischium

semitendinosus insertion

tibia

adductor magnus action 4

adduction, external rotation, extension, horizontal adduction

adductor magnus origin

pubis and ischium

adductor magnus insertion

femur

adductor longus action 3

adduction, external rotation, horizontal adduction

adductor longus origin

pubis

adductor longus insertion

femur

adductor brevis action 3

adduction, external rotation, horizontal adduction

adductior brevis origin

pubis

adductor brevis insertion

femur

gracilis action 5

hip adduction, hip internal rotation, hip horizontal adduction, knee flexion, knee internal rotation

gracilis origin

pubis

gracilis insertion

tibia

biceps femoris (short head) action 2

flexion, external rotation

biceps femoris (short head) origin

femur

biceps femoris (short head) insertion

tibia and fibula

gastrocnemius action 2

flexion, plantarflexion

gastrocnemius origin

femur

gastrocnemius insertion

calcaneus

popliteus action 2

flexion, internal rotation

popliteus origin

femur

popliteus insertion

tibia

vastus medialis action 1

extension

vastus medialis origin

femur

vastus medialis insertion

tibia

vastus lateralis action 1

extension

vastus lateralis origin

femur

vastus lateralis insertion

tibia

vastus intermedius action 1

extension

vastus intermedius origin

femur

vastus intermedius insertion

tibia

plantaris action 2

flexion, plantarflexion

plantaris origin

femur

plantaris insertion

calcaneus

extensor digitorum longus action 3

dorsiflexion, eversion, toe extension

extensor digitorum longus origin

tibia and fibula

extensor digitorum longus insertion

toes 2-5

extensor hallucis longus action

dorsiflexion, inversion, big toe extension

extensor hallucis longus origin

fibula

extensor hallucis longus insertion

big toe

fibularis longus action 2

plantarflexion, eversion

fibularis longus origin

fibula

fibularis longus insertion

cuneiform and 1st metatarsal

fibularis brevis action 2

plantarflexion, eversion

fibularis brevis origin

fibula

fibularis brevis insertion

5th metatarsal

fibularis tertius action 2

dorsiflexion, eversion

fibularis tertius origin

fibula

fibularis tertius insertion

5th metatarsal

tibialis anterior action 2

dorsiflexion, inversion

tibialis anterior origin

tibia

tibialis anterior insertion

cuneiform and 1st metatarsal

tibialis posterior action 2

plantarflexion, inversion

tibialis posterior origin

tibia and fibula

tibialis posterior insertion

navicular, cuneiforms, cuboid, metatarsals 2-4

soleus action 1

plantarflexion