144 



TOPOGEAPHICAL ANATOMY OF 



dorsal metatarsal artery, and ends in the skin over the lateral surface 

 of the first phalanx. 



A. TIBIALIS ANTERIOR. — The anterior tibial artery is the larger of 

 the two terminal branches of the popliteal. By piercing the inter- 

 osseous membrane between the fibula and the tibia the artery gains 

 the lateral surface of the latter bone, along which it runs towards the 



M. peroiipcus tertius. 



M. tibialis anterior 



il. extensor digitorum longus. 



\'. tibialis anterior. 

 V. saphena. 



Tibia. = 



V. tibialis posterior. - =. 



M. flexor digitorura 



longus. 

 A. tibialis posterior. 



y. recurrens tibialis. -" 



A. recurrens tibialis. 



N. tibialis, 



- -N. peronasus profundus. 



-V. tibialis anterior. 

 A. tibialis anterior. 



H ;= .-M. peronseus longus. 



il. flexor hallucis longus. 



il. tibialis posterior. 



^■-V. tarsea recurrens. 

 ~' -* N. cutaneus surce posterior. 



-— -M. gastrocnemius. 



M. plantaris. ''' 

 Fig. 97. — Section across the Leg at the Level indicated by R in Fig. 81. 



tarsus under cover of the anterior tibial muscle. It should be noted 

 that it is only when the tarsus has very nearly been reached that the 

 anterior tibial artery and the deep peroneal nerve come into relation 

 with each other. 



The collateral branches of the anterior tibial artery are: (1) A. 

 peronea, a small and not very constant branch that leaves the parent 

 early, descends along the fibula, and supplies twigs to the flexor 

 hallucis longus, peronaeus longus, and tibialis anterior. (2) Ea7ui 

 musGulares are furnished to the muscles on the lateral aspect of the 

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