Tibialis Posterior
The Tibialis Posterior is a muscle located in the lower leg, specifically behind the shin bone. It plays a crucial role in supporting the arch of the foot and helps with movements such as walking and running. This muscle is responsible for plantarflexion, which is the action of pointing the toes downward.
In addition to its primary functions, the Tibialis Posterior also assists in stabilizing the ankle joint. It is innervated by the tibial nerve and receives blood supply from branches of the posterior tibial artery. Dysfunction or injury to this muscle can lead to issues like flat feet or pain in the lower leg.