Tibialis posterior muscle
From Wikipedia, the free encyclopedia
| Tibialis posterior muscle | ||
|---|---|---|
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| The mucous sheaths of the tendons around the ankle. Medial aspect. (Tibialis posterior labeled at top center.) | ||
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| Muscles of the back of the leg. Deep layer. (Tibialis posterior visible at center.) | ||
| Latin | musculus tibialis posterior | |
| Gray's | subject #129 484 | |
| Origin: | ||
| Insertion: | ||
| Blood: | ||
| Nerve: | tibial nerve | |
| Action: | ||
| Dorlands/Elsevier | m_22/12551177 | |
The Tibialis posterior is the most central of all the leg muscles.
It is the key stabilising muscle of the lower leg.
It originates on the inner posterior borders of the tibia and fibula; it is also attached to the interosseous membrane, which attaches to the tibia and fibula.
The tendon of tibialis posterior the decends down posterior to the medial malleolus and to the plantar surface of the foot where it inserts on to the tuberosity of the navicular, the first and third cuneiforms, the cuboid and the second, third and fourth metatarsals.
As well as being a key muscle for stabilisation, the tibialis posterior muscle also contracts to produce inversion of the foot and assists in the plantar flexion of the foot at the ankle.
[edit] External links
- LUC tibp
- SUNY Labs 15:st-0416
- Dictionary at eMedicine Tibialis+posterior
- Diagram at washington.edu
- Diagram at latrobe.edu.au
