150 



TOPOGRAPHICAL ANATOMY OF 



deep flexor tendon. It ends by joining either the common digital 

 or the lateral plantar digital artery. 



The slender medial plantar artery follows the medial plantar nerve, 

 and ends in the same manner as does the lateral artery. In the 

 proximal part of the metatarsus it is generally united to the medial 

 plantar metatarsal artery by a communicating branch. 



Occasionally the two plantar arteries unite in the distal part of the 



M. gastrocnemius. 



Mm. plaiitaris, biceps femoris et semi- 



tendinosus. 



Tuber calcaiiei. 



Central tarsal bone (scaphoid). 

 Third tarsal bone. 



Mm.°peron<eus tertius et 

 tibialis anterior. 



Tliird metatarsal bone. 



Sustentaculum tali. 



M. tibialis anterior, 

 first tarsal bone. 

 Second tarsal bone. 



if. peronrens tertius. 

 Second metatarsal bone. 



Fig. 103. — Medial Aspect of the Tarsus, with Areas of Muscular Attachment. 



metatarsus and form a single vessel that joins one of the plantar 

 digital arteries. 



The perf moating tarsal artery (a. tarsea perforans) has been seen to 

 enter a canal formed by the tarsal bones. It reappears on the 

 plantar aspect of the tarsus about the line of junction of the bases of 

 the second and third metatarsal bones. Immediately on its reappear- 

 ance it is joined to the lateral plantar artery (possibly to the medial 

 plantar artery also) by a communicating branch. Thus is formed the 

 irroximal plantar arch (arcus plantaris proximalis) from which the 

 medial and lateral plantar metatarsal arteries arise. The plantar 



