106 



THE MUSCLES. 



Fi jr. SS. 



fibres to the astragalus, and is thus connected with the fascia of the 

 dorsum of the foot; externally this aponeurosis is attached to a 

 cartilage (Duges, os sesamoïde, L c, n. 66), situated on the plantar 

 surface of the joint between the calcaneus and the os metatarsi IV. 

 134. Ligamentum calcanei (Ecker), (Figs. 88, 89 l.c)j. 

 If the tendo Achillis be divided and the aponeurosis plantaris 



reflected towards the toes, there is 

 seen, arising from the posterior head 

 of the tibio- fibula, in its whole 

 breadth, a ligament (between the 

 tih. posticus and peroneus). This 

 ligament forms a firm surface on 

 which the thickened portion of the 

 tendo Achillis may move, and which 

 evidently represents the tuberosity 

 of the heel bone. I have there- 

 fore named the entire structure the 

 Uganientum calcanei. 



Several muscles arise from this 

 ligament, viz. : — 



135. M. extensor tarsi (Klein), 

 Figs. 88, 89 e.t.). 



Dugès, tibio-sous-astragalien (regarded 

 by him as the homologue of the 

 tibialis posticus). 



Covered by the two succeeding 

 muscles, this muscle arises from the 



