◔
Tarsal Tunnel
From WikiMSK
This article is a stub.
Components
| Tarsal Tunnel Muscles | Origin | Insertion | Action | Nerve roots | Nerves |
|---|---|---|---|---|---|
| Flexor Digitorum Longus | Posterior surface of the tibia below the soleal line; fascia of tibialis posterior | Base of the distal phalanges of toes 2–5 (plantar surface) | Flexes lateral four toes (DIP, PIP, MTP), assists ankle plantarflexion and inversion, supports longitudinal arch | L5 S1 S2 | Tibial nerve |
| Flexor Hallucis Longus | Inferior two-thirds of the posterior fibula and interosseous membrane | Base of the distal phalanx of the great toe (plantar surface) | Flexes the great toe (MTP and IP joints), assists plantarflexion, supports longitudinal arch | L5 S1 S2 | Tibial nerve |
| Tibialis Posterior | Posterior tibia (below soleal line), posterior fibula, and interosseous membrane | Navicular tuberosity, cuneiforms, cuboid, bases of 2nd–4th metatarsals | Inverts foot, assists plantarflexion, supports medial arch | L4 L5 S1 | Tibial nerve |
