Muscles of Leg - Posterior Compartment

Gastrocnemius Origin 

posterior surface of condyles on femur 

Gastrocnemius Insertion

calcaneus via calcaneal tendon

Gastrocnemius Innervation

tibial nerve

Gastrocnemius Actions

plantar flexion of foot, flexion of leg

Gastrocnemius Blood Supply 

posterior tibial artery 

Soleus Origin

head of fibula, proximal posterior quarter of fibula, soleal line, medial border to tibia

Soleus Insertion

calcaneus via calcaneal tendon

Soleus Innervation 

tibial nerve 

Soleus Action

plantar flexion of foot

Soleus Blood Supply

posterior tibial artery

Plantaris Origin 

lateral supracondylar line of femur

Plantaris Insertion

calcaneus vis calcaneal tendon

Plantaris Innervation

tibial nerve

Plantaris Actions 

plantar flexion of foot 

Plantaris Blood Supply

sural artery

Tibialis Posterior Origin

proximal posterior surface of tibia and fibula, interosseous membrane

Tibialis Posterior Insertion 

Navicular, cuboid, all cuneiforms, bases of metatarsals 2 to 4 

Tibialis Posterior Innervation

tibial nerve

Tibialis Posterior Actions

plantar flexion and inversion of foot

Tibialis Posterior Blood Supply

posterior tibial artery

Popliteus Origin

Lateral condyle of femur, lateral meniscus

Popliteus Insertion

proximal to soleal line on tibia 

Popliteus Innervation

tibial nerve

Popliteus Actions

lateral rotation of femur to unlock knee, flexion at knee 

Popliteus Blood Supply

popliteal artery

Flexor Hallcuis Longus Origin

distal 2/3 of posterior surface of fibula, interosseous membrane

Flexor Hallucis Longus Insertion 

base of distal phalanx of great toe 

Flexor Hallucis Longus Innervation

tibial nerve

Flexor Hallucis Longus Actions

flexion of hallux, plantar flexion of foot 

Flexor Hallucis Longus Blood Supply

posterior tibial and fibular arteries

Flexor Digitorum Longus Origin

medial part of posterior surface of tibia

Flexor Digitorum Longus Insertion 

base of distal phalanges 2 to 5 

Flexor Digitorum Longus Innervation

tibial nerve

Flexor Digitorum Longus Actions

flexion of digits 2 to 5, plantar flexion of foot

Flexor Digitorum Longus Blood Supply 

posterior tibial artery