4/2/2023 0 Comments Leg compartments of leg![]() It was traditionally felt that the fascia overlying specialized organs and tissues within the body are irrelevant and only served to hold in place a particular tissue type. Within the posterior compartment of the leg, an additional septum further separates the compartment into two additional layers superficial and deep. The divisions of the lower leg are made up by intermuscular septa that are extensions of the overlying fascia. The fibula articulates with the tibia laterally at proximal and distal ends however, it has no involvement in weight bearing. The tibia is a large weight-bearing bone, often referred to as the "shin bone," and articulates with the femoral condyles superiorly and the talus inferiorly. ![]() ![]() The various muscles of the posterior compartment primarily originate at the two bones of the leg, the tibia, and the fibula. The deep layer of the leg's posterior compartment contains the popliteus, flexor digitorum longus, flexor hallucis longus, and tibialis posterior muscles. The larger, superficial compartment of the lower leg contains the gastrocnemius, soleus (GS) and plantaris muscles. 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 posterior compartment musculature functions to plantarflex and invert the foot.The lateral compartment musculature functions to plantar flex and evert the foot.The anterior compartment musculature functions to primarily dorsiflex the foot and ankle.Each compartment contains its distinct set of muscles, vasculature, and innervation: These compartments are formed and separated via divisions by the anterior and posterior intermuscular septa, and the interosseous membrane. The lower leg divides into three fascial compartments:
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