Posterior Compartment of The Leg is the biggest osseofascial compartment of the leg.

Interactive Anatomical Interface

Highlight
tibialis anterior
extensor digitorum longus
fibularis tertius
Tibia
fibularis longus
soleus
gastrocnemius
fibula
soleus
GASTROCNEMIUS ( medial head)

Highlight
tibialis anterior
extensor digitorum longus
fibularis tertius
Tibia
fibularis longus
soleus

Highlight
gastrocnemius
fibula
soleus
GASTROCNEMIUS ( medial head)
-
Highlight
Gastrocnemius
Fibularis Brevis
soleus
Achilles tendon
popliteus
flexor hallucis longus
Tibialis posterior
fibularis longus
calcaneus
tibia
plantaris
abductor hallucis

Highlight
Gastrocnemius (triceps surae, part)
soleus
Fibularis Brevis
Achilles tendon
popliteus
flexor hallucis longus

Highlight
Tibialis posterior
fibularis longus
calcaneus
tibia
plantaris
abductor hallucis
-

Please hover over the figure to get a brief info about the body parts. To get the elaborated info click on the body part.
 
Please rotate the device for better visual interaction.
 

Borders And Subdivisions

  • Anterior: Posterior surfaces of the tibia, fibula, interosseous membrane, and posterior intermuscular septum.
  • Posterior: Deep fascia of the leg extending from the medial border of the tibia to the posterior intermuscular septum.

The posterior compartment of the leg is subdivided by two powerful transverse fascial septa (superficial and deep) into 3 parts: superficial, middle, and deep.

The superficial transverse septum is connected medially to the medial border of the tibia and laterally to the posterior border of the fibula.

The deep transverse septum is connected medially to the proximal part of the soleal line and vertical ridge on the posterior outermost layer of the tibia, and laterally to the medial crest of the fibula.

  • Superficial part (between superficial transverse septum and deep fascia) includes gastrocnemius, soleus, and plantaris.
  • Middle part (between superficial and deep transverse fascial septa) includes flexor digitorum longus, flexor hallucis longus, and posterior tibial nerve and vessels.
  • Deep part (between deep transverse fascial septum and posterior surfaces of interosseous membrane, tibia, and fibula) includes tibialis posterior.

Contents

  • Muscles: Superficial and deep groups of the muscles.
  • Arteries: Tibial and peroneal arteries.
  • Nerve: Tibial nerve.

Superficial and deep muscles of the posterior compartment of the leg.

Superficial musclesDeep muscles
GastrocnemiusPopliteus
SoleusFlexor digitorum longus
PlantarisFlexor hallucis longus