Posterior Hip

Gluteus Maximus

Origin - Ilium & sacrum

Insertion - Iliotibial tract & gluteal tuberosity

Joint - Hip

Action - Extends and laterally rotates thigh

Nerve - inferior gluteal nerve

Posterior Hip

Gluteus medius

Origin - Ilium

Insertion - Greater trochanter of femur

Joint - Hip joint

Action - Abducts hip

Nerve - Superior gluteal nerve

Posterior Hip

Tensor fascia latae

Origin - iliac crest

Insertion - Iliotibial tract of fascia latae

Joint - Hip joint

Action - Abduct hip

Nerve - Superior gluteal nerve

Anterior Hip

Psoas Major

Origin - Lumbar vertebra

Insertion - Lesser trochanter of femur

Joint - Hip joint

Action - Flexes & laterally rotates hip.

Nerve - femoral nerve.

Anterior Hip

Iliacus

Origin - Iliac fossa

Insertion - Lesser trochanter of femur

Joint - Hip joint

Action - Flexes & laterally rotates hip

Nerve - Femoral nerve

Anterior Femoral

Sartorius

Origin - Anterior superior iliac spine

Insertion - medialy tibial tuberosity

Joint - Hip and knee

Action - Flexes & laterally rotates hip

Flexes and medially rotates knee

Nerve - Femoral nerve

Anterior femoral

Rectus femoris

Origin - Anterior inferior iliac spine

Insertion - patella ligament to tibial tuberosity

Joint - Hip and knee

Action - Flexes hip

Extends knee

Nerve - Femoral nerve

Anterior femoral

Vastus lateralis

Origin - Proximal anterior femur

Insertion - patella ligament to tibial tuberosity

Joint - Knee joint

Action - Extends knee

Nerve - Femoral nerve

Anterior femoral

Vastus medialis

Origin - Proximal anterior femur

Insertion - patella ligament to tibial tuberosity

Joint - knee joint

Action - extends knee

Nerve - Femoral nerve

Anterior femoral

Vastus intermedius

Origin - proximal anterior femur

Insertion - patella ligament totibial tuberosity

Joint - knee joint

Action - extends knee

Nerve - Femoral nerve

Medial Femoral

Gracilis

Origin - pubis

Insertion - medial tibia

Joint - Hip and knee

Action - Adducts & flexes hip

Flexes knee

Knee - Obturator Nerve

Medial femoral

Adductor Group

(3 muscles - brevis, longus, and magnus)

Origin - pubis

Insertion - Linea aspera & adductor tubercle of femur

Joint - Hip joint

Action - Adducts & flexes hip

Nerve - Obturator nerve

Posterior Femoral

Biceps femoris

Origin - Long Head: ischial tuberosity

Short Head: linea aspera of femur

Insertion - Head of fibula

Joint - Hip & knee

Action - Extends hip and flexes knee

Nerve - Tibial nerve. (SH = common fibular nerve)

Posterior Femoral

Semimembranosus and Semitendinosus

Origin - ischial tuberosity

Insertion - proximal tibia

Joint - Hip & knee

Action - Extends hip and flexes knee

Nerve - tibial nerve

Anterior Crural

Tibialis Anterior

Origin - Anterior tibia

Insertion - Medial metatarsals

Joint - Ankle

Action - Dorsiflexion & inversion

Nerve - Deep fibular nerve

Anterior Crural

Extensor digitorum longus

Origin - Anterior leg

Insertion - 4 tendons to toes 2-5

Joint - ankle and toes

Action - Dorsiflexion

Extends toes 2-5

Nerve - Deep fibular nerve

Anterior Crural

Extensor hallucis Longus

Origin - Anterior leg

Insertion - hallux

Joint - Ankle & hallux

Action - dorsiflexion

Extends hallux

Nerve - Deep fibular nerve

Lateral Crural

Fibular muscles group

(longus, brevis, & tertius)

Origin - Fibula

Insertion - under foot

Joint - ankle

Action - eversion of foot (used in walking)

Nerve - Superficial fibular nerve

Posterior Crural

Gastrocnemius

Origin - Condyles of femur

Insertion - Calcaneus via calcaneal tendon

Joint - Knee and ankle

Action - Flexes knee

Plantar flexion of foot.

Nerve - Tibial nerve

Posterior Crural

Soleus

Origin - proximal tibia & fibula

Insertion - Calcaneus via calcaneal tendon

Joint - ankle

Action - plantar flexion of foot

Nerve - Tibial nerve

Posterior Crural: Deep

Popliteus

Origin - lateral condyle of femur

Insertion - proximal posterior tibia

Joint - knee

Action - flexes & medially rotates knee

Nerve - Tibial nerve

Posterior Crural: Deep

Tibialis posterior

Origin - Posterior tibia

Insertion - Inferior metatarsals of foot

Joint - Ankle

Action - Plantar flexion of foot

Nerve - Tibial nerve

Posterior Crural: Deep

Flexor digitorum longus

Origin - Posterior tibia

Insertion - Inferior toes 2-5

Joint - Ankle & toes 2-5

Action - Plantar flexion of foot

Flexes toes 2-5

Nerve - Tibial nerve

Posterior Crural: Deep

Flexor hallucis longus

Origin - posterior fibula

Insertion - inferior hallux

Joint - ankle and hallux

Action - plantar flexion of foot

flexion of hallux

Nerve - Tibial nerve