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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.
Muscles in the Posterior Compartment of the Leg.
The posterior muscles are natural antagonists to the anterior muscle group. Generally, their main functions are plantarflexion, inversion of the foot, and flexion of the toes. Additionally, the natural tension of these muscles, especially the tibialis anterior, supports the medial arch of the foot. Namely, the deep flexor muscles of the leg are:
The majority of muscles in the leg are considered long muscles, in that they stretch great distances. As these muscles contract and relax, they move skeletal bones to create movement of the body.
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.
Wondering about the posterior muscles of the leg? Get started with this short introductory video.
Tibialis posterior is a posterior leg muscle that helps with plantar flexion and inversion of the foot. Learn about its anatomy and functions at Kenhub!
This tutorial teaches the muscles comprising the posterior compartment of the leg.Access my FREE Online Membership today → https://www.thenotedanatomist.com_...
The various muscles of the posterior compartment primarily originate at the two bones of the leg, the tibia, and the fibula. 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. [2] .
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 ...