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The posterior compartment of the leg contains seven muscles, organised into two layers - superficial and deep. Collectively, the muscles in this area plantarflex and invert the foot. They are innervated by the tibial nerve, a terminal branch of the sciatic nerve.
The posterior compartment of the leg is one of the fascial compartments of the leg and is divided further into deep and superficial compartments. Structure. Muscles. Superficial posterior compartment. [ 1 ] Deep posterior compartment. [ 2 ][ 3 ] Blood supply. Posterior tibial artery. Innervation.
The leg is divided into four osseofascial compartments by. interosseous membrane of the leg. transverse intermuscular septum. anterior intermuscular (crural) septum. Compartment Contents. Anterior compartment. muscular. tibialis anterior. extensor hallucis longus.
For this reason, the posterior compartment is subdivided further into superficial and deep muscle groups. This article will discuss the anatomical properties that the deep posterior muscles of the leg share, and as well as the clinical states related to them.
The deep layer of the leg's posterior compartment contains the popliteus, flexor digitorum longus, flexor hallucis longus, and tibialis posterior muscles. The various muscles of the posterior compartment primarily originate at the two bones of the leg, the tibia, and the fibula.
3D anatomy tutorial on the muscles of the posterior compartment of the leg. This tutorial is in two parts, the second part is on the muscles of the anterior ...
This tutorial teaches the muscles comprising the posterior compartment of the leg.Access my FREE Online Membership today → https://www.thenotedanatomist.com_...
The posterior group of muscles primarily produce plantar flexion of the foot at the ankle joint, an action important for the toe-off phase of the gait cycle, in which the foot prepares to leave the ground. Plantar flexion is also important for maintaining posture while standing and walking.
Tibialis posterior is the most central and deepest muscle located in the posterior aspect of the leg. Together with popliteus, flexor hallucis longus and flexor digitorum longus, it forms the deep group of muscles of the posterior compartment of leg. These muscles are located posterior to the tibia, fibula and interosseous membrane.
The posterior compartment of the leg (often referred to as the "calf") further divides into distinct superficial and deep compartments by the transverse intermuscular septum. The larger, superficial compartment of the lower leg contains the gastrocnemius, soleus (GS) and plantaris muscles.