1462 



CLINICAL AND TOPOGRAPHICAL ANATOMY 



furrows below. Along the medial, the tendon of the tibialis posterior and the 

 posterior tibial vessels and nerve come nearer the surface. Along the lateral, 

 the small saphenous vein (more superficially) ascends from behind the lateral 

 malleolus. 



(C) On the medial side. — The tendon of the tibialis posterior, which has pre- 

 viously crossed from the interspace between the bones of the leg to the medial side, 

 Ues behind the inner edge of the tibia above the medial malleolus, then behind this' 

 being here under the flexor digitorum longus, the two tendons having become super- 

 ficial on the medial side of the tendo Achillis. It then passes forward over the 

 deltoid and under the laciniate (internal annular) ligament between the medial 

 malleolus and the sustentaculum tali, and then below and close to the plantar cal- 



FiG. 1177. — Horizontal Section through the Lower Part of the leg. (After Braune.) 



Deep peroneal n. 



Ant. tibial vessels 



M. extensor digitorum com. 



Tendon of peroneus longus 



M. peroneus brevis 



M. flexor hallucis longus 



Sural nerve 



Tendon of ant. tibial 



7" M extensor hallucis longus 





^■'i-lf.-\''''f'y^'^r^ — Tendon of post, tibial 



Tendon of flexor longus digitorum 



Tibial nerve 



Tendo calcaneus (Achillis) 



) 



caneo-naviculur ligament (y/c/em/ra), and so to its insertion, by numerous shps, 

 mto the tarsus and metatarsus, especially the tuberosity of the navicular. The 

 tendon of the flexor hallucis longus cannot be felt. Having passed medially from 

 the fibula, it crosses the lower end of the tibia in a separate furrow, then grooves 

 the backof the talus, and passes under the sustentaculum tali on its way to its 

 insertion. 



Thf jirranKcment of the structures at the medial ankle from above downward, and medio- 

 lutxT.-illy, iH as follows (fig. 1177):— tibialis posterior, floxor digitorum longus, companion vein, 

 po.stenor tibial artery, companion vein, libiai nerve, (U'xor liallucis longus. The tibiales pos- 

 terior and anterior turn the sole medially, antagonising the peronei. They also bear a large 



