Leg/ankle/foot

What does the popliteal artery split into?

Anterior tibial artery & posterior tibial artery

What does the posterior tibial artery give rise to?

The fibular artery

What does the sciatic nerve divide into?

Tibial nerve & common fibular nerve

What does the common fibular nerve divide into?

Superficial fibular nerve & deep fibular nerve

Artery and nerve for anterior compartment

a.: anterior tibial artery; n.: deep fibular nerve

Tibialis anterior origin

Proximal 1/3 tibia

Tibialis anterior insertion

1st metatarsal & medial cuneiform

Tibialis anterior action

Dorsiflexes and inverts foot

Extensor digitorum longus origin

Proximal 3/4 fibula; lateral tibial condyle

Extensor digitorum longus insertion

Middle and distal phalanges of 2nd-5th toes

Extensor digitorum longus action

Extends lateral 4 toes; dorsiflexes foot

Extensor hallucis longus origin

Middle 1/3 fibula

Extensor hallucis longus insertion

Distal phalanx of hallux

Extensor hallucis longus action

Extends great toe; dorsiflexes foot

Artery and nerve for lateral compartment

a.: fibular artery; n.: superficial fibular nerve

Fibularis longus origin

Proximal 2/3 fibula

Fibularis longus insertion

1st metatarsal; medial cuneiform

Fibularis longus action

Everts & plantar flexes foot

Fibularis brevis origin

Distal 2/3 fibula

Fibularis brevis insertion

Tuberosity of 5th metatarsal

Fibularis brevis action

Everts & plantarflexes foot

Artery and nerve for superficial posterior compartment

a.: posterior tibial artery; n.: tibial nerve

Gastrocnemus origin

Medial & lateral condyles of femur

Gastrocnemus insertion

Calcaneus

Gastrocnemus action

Plantar flexes foot; flexes leg

Soleus origin

Fibula; soleal line of tibia

Soleus insertion

Calcaneus

Soleus action

Plantar flexes foot

Plantaris origin

Lateral femoral condyle

Plantaris insertion

Calcaneus

Plantaris action

Plantar flexes foot; flexes leg

Artery and nerve for deep posterior compartment

a.: posterior tibial artery & fibular artery; n.: tibial nerve

Tibialis posterior origin

Tibia; fibula; interosseous membrane

Tibialis posterior insertion

Navicular; calcaneus; all cuneiforms; 2nd-4th metatarsals

Tibialis posterior action

Inverts & plantar flexes foot

Flexor digitorum longus origin

Posterior surface of tibia inferior to soleal line

Flexor digitorum longus insertion

Distal phalanges of lateral 4 toes

Flexor digitorum longus action

Flexes lateral 4 toes; plantar flexes foot

Flexor hallucis longus origin

Distal 2/3 fibula

Flexor hallucis longus insertion

Distal phalanx of great toe

Flexor hallucis longus action

Flexes great toe; plantar flexes foot

Popliteus origin

Posterior surface of lateral femoral condyle

Popliteus insertion

Posterior tibia superior to soleal line

Popliteus action

Rotates tibia; medially rotates & unlocks knee joint

Extensor digitorum brevis origin

Calcaneus

Extensor digitorum brevis insertion

2nd-4th toes

Extensor digitorum brevis action

Extends toes 2-4

Extensor hallucis brevis origin

Calcaneus

Extensor hallucis brevis insertion

Great toe

Extensor hallucis brevis action

Extends great toe