Muscles of the hip, thigh, leg, and foot

Illopsoas

O: T12, L1-5, iliac fossa

I: lesser trochanter of femur

A: flexes thigh and lumbar vertebrae

Innervation: femoral nerve, spinal nerves L1-3

Sartorius

O: anterior superior iliac spine

I:proximal, medial tibia

A: flexes and laterally rotates thigh, flexes leg

Innervation: femoral nerve

Gracilis

O: pubis, near symphysis

I: proximal, medial tibia

A: adducts thigh, flexes leg

Innervation: obturator nerve

Pectineus

O: pubic crest

I: pectineal line of femur

A: adducts thigh

Innervation: femoral, obturator nerve

adductor brevis

O: pubis

I: linea aspera at proximal portion of femur

A: adducts, flexes, and laterally rotates thigh

Innervation: obturator nerve

Adductor longus

O: pubis

I: linea aspera at middle portion of femur

A: adducts, flexes, and laterally rotates thigh

Innervation: obturator nerve

Adductor Magnus

O: pubis, ischium

I: linea aspera, adductor tubercle of distal femur

A:adducts, extends, and laterally rotates thigh

Innervation: obturator and tibial nerves

rectus femoris

O: anterior inferior iliac spine

I: tibial tuberosity by the patellar ligament

A: flexes thigh, extends leg

Innervation: femoral nerve

vastus lateralis

O: greater trochanter of femur, linea aspera of femur

I: tibial tuberosity by the patellar ligament

A: extends leg

Innervation: femoral nerve

Vastus intermedius

O: proximal, anterior femur

I: tibial tuberosity by the patellar ligament

A: extends leg

Innervation: femoral nerve

Vastus medialis

O: linea aspera of femur, on medial side

I:tibial tuberosity by the patellar ligament

A:extends leg

Innervation: femoral leg

Tensor fasciae latae

O: anterior superior iliac spine

I: iliotibial band of fasciae latae to lateral condyle of tibia

A: flexes, adducts, and medially rotates thigh

Innervation: superior gluteal nerve

gluteus maximus

O: outer iliac blade, iliac crest, sacrum, coccyx

I: gluteal tuberosity of femur, iliotibial band of fasciae latae

A:extends, abducts, and laterally rotates thigh; braces knee

Innervation: inferior gluteal nerve

gluteus medius

O: outer iliac blade , iliac crest, sacrum, coccyx

I: greater trochanter of femur

A:abducts and medially rotates thigh

Innervation:superior gluteal nerve

Gluteus minimus

O: outer iliac blade

I:greater trochanter of femur

A: abducts and medially rotates thigh

Innervation: superior gluteal nerve.

Biceps femoris

O: ischial tuberosity, liean aspera of femur

I:head of fibula, lateral condyle of tibia

A:extends thigh, flexes leg

Innervation: tibial and fibular nerves

Semitendinosus

O: ischial tuberosity

I:proximal, medial tibia

A:extends thigh, flexes legs

Innervation: tibial nerve

Semimembranosus

O: ischial tuberosity

I: medial condyle of tibia, collateral ligament

A:extends thigh, flexes leg

Innervation: tibial nerve

Tibialis anterior

O: tibia, interosseous membrane

I:metatarsal 1 and cuneiform 1

A:Dorsiflexes and inverts foot

Innervation: deep fibular nerve

Extensor digitorum longus

O: lateral condyle of tibia, shaft of fibula

I:middle and distal phalanges of digits 2-5

A:extends toes 2-5, dorsiflexes and everts foot

Innervation: deep fibular nerve

Extensor hallucis longus

O: anterior shaft of fibula, interosseous membrane

I:distal phalanx of hallux (big toe)

A:extends hallux, dorsiflexes foot, inverts foot

Innervation: Deep fibular nerve

Fibularis longus

O: head and shaft of fibula, lateral condyle of tibia

I: metatarsal 1, cuneiform 1

A: plantar flexes and everts foot

Innervation: superficial fibular nerve

fibularis brevis

O: shaft of fibular

I:metatarsal 5

A: plantar flexes and everts foot

Innervation: superficial fibular nerve

Fibula’s tertius

O: fibula, interosseous membrane

I: dorm of metatarsal 5

A: dorsiflexes and everts foot

Innervation: Deep fibular nerve

Gastrocnemius

O: condyles of femur

I:calcaneus by the calcanea tendon

A:flexes leg, plantar flexes foot

Innervation: tibial nerve

Soleus

O: posterior, proximal tibia; fibular

I: calcaneous by the calcanea tendon

A: plantar flexes foot

Innervation: tibial nerve

Popliteus

O: lateral condyle of femur

I: proximal tibia

A:flexes leg

Innervation: tibial nerve

Tibialis posterior

O: interosseous membrane, tibia, fibula

I:metatarsals 2-5, navicular, cuneiforms, cuboid

A:plantar flexes and inverts foot

Innervation: tibial nerve

Flexor digitorum longus

O: posterior tibia

I:distal phalanges of digits 2-5

A: flexes toes 2-5, plantar flexes and inverts foot

Innervation: tibial nerve

Flexor hallucis longus

O: mid shaft of fibula

I: distal phalanx of hallux (big toe)

A: flexes hallux, plantar flexes and inverts foot

Innervation: tibial nerve