ankle and foot muscles

Gastrocnemius origin

Medial head: medial femoral condyle

Lateral head: lateral femoral condyle

Gastrocnemius insertion

Posterior Calcaneus

Gastrocnemius action

Plantar flexion, flexion of knee

Gastrocnemius innervation

Tibial nerve

Soleus origin

Proximal tibia and fibula

Soleus action

Plantar flexion

Soleus innervation

Tibial nerve

Perone longus origin

Head and upper 2/3 of fibula

Peroneus longus insertion

Undersurface of medial coneiform, undersurface of 1st metatarsal

Peroneus brevis origin

Mid and lower 2/3 of fibula

Peroneus brevis insertion

Tuberosity of 5th metatarsal

Peroneus brevis action

Plantar flexion, eversion

Peroneus brevis innervation

Superficial peroneal nerve

Peroneus tertius origin

Distal 1/3 or anterior fibula

Petronius tertius insertion

Tuberosity of 5th metatarsal

Peroneus tertius action

Eversion, dorsiflexion

Peroneus tertius innervation

Superficial peroneal nerve

Extensor digitorum longus origin

Lateral condyle of tibia, fibular head, upper 2/3 of fibula

Extensor digitorum longus insertion

Top of middle and distal phalanxes of digits 2-5

Extensor digitorum longus action

Extension of digits 2-5 at MTP, PIP, and DIP joints, dorsiflexion, eversion

Extensor digitorum longus Innervation

Deep peroneal nerve

Extensor hallucis longus origin

Middle 2/3 of anterior fibula

extensor hallucis longus insertion

Base of distal phalanx of digit 1

extensor hallucis longus Action

Extension of digit 1 at MTP and IP joint, dorisflexion, weak inversion

extensor hallucis longus Innervation

Deep peroneal nerve

Tibialis anterior origin

Upper 2/3 of tibia

Tibialis anterior insertion

Inner surface of medial cuneiform, 1st metatarsal

Tibialis anterior Action

Dorsiflexion, inversion

Tibialis anterior Innervation

Deep peroneal nerve

Tibialis posterior origin

Posterior surface of interosseous membrane

Tibialis posterior Insertion

Inferior surface of navicular, cuneiform, cuboid, and 2-4 metatarsal bases

Tibialis posterior action

Plantar flexion, inversion

Tibialis posterior Innervation

Tibial nerve

Flexor digitorum longus origin

Middle 1/3 of posterior tibia

Flexor digitorum longus Insertion

Base of distal phalanx of digits 2-5

Flexor digitorum longus Action

Flexion of digits 2-5 at metatarsophalangeal, PIP and DIP joints

Inversion, plantar flexion

Flexor digitorum longus Innervation

Tibial nerve

Flexor hallucis longus origin

Middle 2/3 posterior fibula

Flexor hallucis longus Insertion

Base of distal phalanx of digit 1

Flexor hallucis longus Action

Flexion of digit 1 at metatarsophilangeal and interphilangeal joints, inversion, plantar flexion

Flexor hallucis longus Innervation

Tibial nerve