tamu biol 319 lab 6 AOI's

illiopsoas (iliacus and psoas major)

A: flexion of the thigh and medial rotation of the femur

O: iliac fossa, ala of sacrum and vertebrae (T12-L5)

I: lesser trochanter (femur)

Sartorius

A: flexion of thigh and lateral rotation of the femur

O: anterior superior iliac spine

I: proximal shaft of tibia

Adductor magnus

A: adduction and extension of the thigh

O: pubis and ischium

I: gluteal tuberosity and linea aspera (femur)

Adductor longus & brevis

A: adduction of thigh

O: body and inferior ramus (pubis)

I: linea aspera

Pectineus

A: adducts, flexes and medially rotates thigh

O: body and superior pubis

I: proximal shaft of femur

Gracilis

A: adduction of thigh; flexion of leg

O: body and superior ramus (pubis)

I: proximal shaft of tibia

Rectus femoris

A: extension of the leg; flexion of the thigh

O: anterior inferior iliac spine

I: patella and tibial tuberosity

vastus lateralis

A: extension of leg

O: greater trochanter (femur)

I: patella and tibial tuberosity

Vastus medialis

A: extension of leg

O: interochanteric line and linea aspera (femur)

I: patella and tibial tuberosity

vastus intermedius

A: extension of leg

O: anterolateral shaft of femur

I: patella and tibial tuberosity

tensor fasciae latae

A: flexion, abduction and medial rotation of thigh

O: anterior superior iliac spine

I: iliotibial tract

gluteus medius

A: abduction of thigh

O: Ala (ilium)

I: greater trochanter (femur)

Gluteus maximus

A: extension, lateral rotation and abduction of thigh

O: Ala (ilium); sacrum; coccyx

I: gluteal tuberosity (femur)

Biceps femoris (hamstrings)

A: flexion of leg; extension of thigh

O: ischial tuberosity

I: head of fibula

Semitendinosus

A: flexion of leg; extension of thigh

O: ischial tuberosity

I: proximal shaft of tibia

Semimembranosus

A: flexion of leg; extension of thigh

O: ischial tuberosity

I: medial condyle (tibia)

Tibialis anterior

A: dorsiflexes and inverts foot

O: lateral condyle shaft (tibia); interosseous membrane

I: metatarsal I; medial cuneiform

extensor digitorum longus

A: Extension of toes; dorsiflexion and eversion of foot

O: lateral condyle shaft (tibia); interosseous membrane

I: distal phalanges II-V

extensor hallucis longus

A: Extension of toes; dorsiflexion and inversion of the foot

O: fibula; interosseous membrane

I: distal phalanx of great toe

Fibularis (peroneus) tertius

A: dorsiflexion and eversion of the foot

O: fibula; interosseous membrane

I: metatarsal V

Fibularis (peroneus) brevis

A: plantar flexion and eversion of the foot

O: distal shaft of fibula

I: metatarsal V

fibularis (peroneus) longus

A: plantar flexion and eversion of the foot

O: proximal shaft of fibula

I: metatarsal I and medial cuneiform

Gastrocnemius (medial and lateral head)

A: plantar flexion and flexion of leg

O: medial and lateral condyles (femur)

I: calcaneus

Plantaris

A: Plantar flexion of foot; flexion of leg

O: distal shaft of femur

I: calcaneus

soleus

A: plantar flexion of foot

O: proximal shafts of tibia and fibula

I: calcaneus

flexor digitorum longus

A: plantar flexion and inversion of foot; flexion of toes II-V

O: Mid-shaft of tibia

I: distal phalanges II-V

flexor hallucis longus

A: plantar flexion and inversion of the foot; flexion of the great toe

O: posterior shaft of fibula; interosseous membrane

I: distal phalange of great toe