Tarsal tunnel
Tarsal tunnel is located on the inner side of the foot, specifically near the ankle, that connects the tibia with the foot with a fibrous band. Most of the nerves, and blood vessels(the tibial nerve, posterior tibial artery and tendons of the tibialis posterior, flexor digitorum longus and flexor hallicus longus muscles, passing deep to the flexor retinaculum) that supply the foot travel through this tunnel and excess pressure in this tunnel can lead to what is called [[tarsal tunnel syndrome.
Muscle | Origin | Insertion | Artery | Nerve | Action | Antagonist |
---|---|---|---|---|---|---|
popliteus | middle facet of lateral surface of lateral femoral condyle | posterior tibia under tibial condyles | popliteal artery | tibial nerve | medially rotates and flexes knee | |
tarsal tunnel | ||||||
flexor hallucis longus | posterior surface of upper 1/3 of fibula | base of distal phalanx of hallux | fibular artery (peroneal branch of posterior tibial artery | tibial nerve, S1, S2 nerve roots | flexes all joints of big toe, plantarflexes ankle | extensor hallucis longus |
flexor digitorum longus | medial tibia | distal phalanges of lateral four digits | posterior tibial artery | tibial nerve | flexes toes | extensor digitorum longus, extensor digitorum brevis |
tibialis posterior | tibia, fibula | navicular, medial cuneiform | inverts foot, plantarflexes foot at ankle | tibialis anterior |
Table adapted from Wikipedia
The mucous sheaths of the tendons around the ankle. Medial aspect. The flexor retinaculum is labelled as laciniate lig.
See also[edit | edit source]
Navigation: Wellness - Encyclopedia - Health topics - Disease Index - Drugs - World Directory - Gray's Anatomy - Keto diet - Recipes
Search WikiMD
Ad.Tired of being Overweight? Try W8MD's physician weight loss program.
Semaglutide (Ozempic / Wegovy and Tirzepatide (Mounjaro) available.
Advertise on WikiMD
WikiMD is not a substitute for professional medical advice. See full disclaimer.
Credits:Most images are courtesy of Wikimedia commons, and templates Wikipedia, licensed under CC BY SA or similar.Contributors: Prab R. Tumpati, MD