Tibialis Posterior
Anatomy and Function
Origion |
Proximal posterolateral aspect of the tibia. Proxmial posteromedial aspect of the fibula and the interosseous membrane. |
Mid portion |
Situated in the deep posterior compartment of the lower leg and runs proximal to the medial malleoli where it is secured by the flexor retinaculum. |
Insertion |
The major insertion is onto the navicula and the plantar slip attatches to the medial cuniform |
Innervation |
Tibial Nerve (L4-S3) |
Function | To plantarflex and invert the ankle. It also plays an important role in stabilising the medial longitudinal arch. |
Drake RL, Vogl W, Mitchell AWM. Gray's Anatomy for Students. 2nd Ed. Philadelphia: Churchill Livingstone Elsevier, 2010.
Images
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References