Structures

  • Gastrocnemius
  • Plantaris
  • Soleus

MuscleActionOriginInsertionInnervationBlood supply
Gastrocnemius- Medial head: posterior of Medial femoral condyle
- Lateral head: posterior of Lateral femoral condyle
- Calcaneal tendon, to posterior surface of calcaneus- Tibial nerve; S1 ,S2- Plantarflexes foot flexes knee - Sural branches of popliteal artery
Plantaris- Inferior aspect of lateral supracondylar line of distal femur- Calcaneal tendon, to posterior surface of calcaneus- Tibial nerve; S1 ,S2- Plantarflexes foot flexes knee- Sural arteries
Soleus- Soleal line and middle third of posterior border of tibia
- Upper quarter of posterior shaft of fibula including neck
- Calcaneal tendon, to posterior surface of calcaneus- Tibial nerve; S1 ,S2- Plantarflexes the foot- Posterior tibial
- Peroneal
- Sural arteries