438 



Arteries of the Leg. 



479. Arteries of the right leg, viewed from in front. 



extensor hallucis longus have been partially removed.) 



(The mm. tibiahs anterior and 

 A. genu superior medialis 



A. genu supe- 

 rior lateralis 



Eete articulare 

 genu 



Rete patellae 



A. genu inferior 

 lateralis 



A. genu inferior 

 medialis 



A. recurrens 

 tibialis 

 anterior 



A. tibialis 

 anterior 



M. tibialis 

 anterior 



M. extensor 

 hallucis 

 longus 



M. extensor 



digitorum 



longus 



M. extensor 

 hallucis longus 



Eanius perforans 

 a. peronaeae 



A. dorsalis pedis 





1) Ramus fibularis (see Fig. 478) extends lateral- 

 ward toward the colhmi fibulae to the mm. soleus 

 and peronaeus longus. 



2) A. peronaea (peroneal artery) (see Fig. 478) 

 arises just below the coUum fibulae and runs down- 

 ward on the posterior surface of the ra. tibialis poste- 

 rior, between it and the m. flexor hallucis longus, 

 near the fibula ; below, it lies upon the posterior sur- 

 face of the tibia or the membrana interossea cruris and 

 breaks up behind the ankle joint into the ?-ami cal- 

 canti laterales (0. T. external calcaneal arteries) 

 which go to the rete calcaneum and its neighborhood. 

 Numerous branches to the muscles, and further: 



a) A. nutricia fibulae (see Fig. 478) into the canalis 



nutricius fibulae. 



b) Ramus perforans (0. T. anterior peroneal artery) 



(see also Figs. 478 and 480) perforates the mem- 

 brana interossea just above the syndesmosis 

 tibiofibularis , unites with the a. malleolaris 

 anterior lateralis and helps to form the rete 

 maUeolure laterale and the rete calcaneum. 



c) A. malleolaris "posterior lateralis (see Fig. 478), 



directly ^ upon the fibula, to the rete malleo- 

 lar e laterale. 



d) Ramus commtmicans (see Fig. 478), upon the 



posterior surface of the tibia, just above the 

 ankle joint, to the a. tibialis posterior. 



3) A. nutricia tibiae (see Fig. 478) into the 

 canalis nutricius tibiae. 



4) A. malleolaris posterior medialis (0. T. 

 internal malleolar branch) (see Fig. 478), directly upon 

 the tibia to the rete malleolare mediate. 



5) Rami caleauei mediales (0. T. internal 

 calcaneal branches) (see Figs. 478 and 481) form, 

 with the rami calcanei laterales, the I'ete calcaneum, 

 which is situated superficially upon the tuber calcanei, 

 as well as upon the surrounding muscles and tendons. 



A. tibialis anterior (anterior tibial artery) 

 goes forward above the membrana interossea cruris and 

 directly downward upon its anterior surface. Above, 

 it lies between the m. tibialis anterior and the m. ex- 

 tensor digitorum longus; below, between the former 

 muscle and the m. extensor hallucis longus. Farther 

 down, it is situated upon the anterior surface of the 

 tibia and of the capsule of the upper joint of the ankle, as 

 well as behind the m. extensor hallucis longus and be- 

 hind the deep layer of the lig. cruciatum and there be- 

 comes continuous with the a. dorsalis pedis. It gives ofF 

 numerous branches to the muscles and skin, and further: 



1) A. recurrens tibialis posterior (posterior 

 tibial recurrent artery) (see Fig. 478) which comes oif at 

 the beginning of the artery, extends, behind the fibula, 

 to the articulatio tibiofibularis. It is often absent. 



2) A. recurrens tibialis anterior (anterior 

 tibial recurrent artery) upward, upon the anterior sur- 

 face of the condylus" lateralis tibiae, to the rete arti- 

 culare genu, which is spread out partly upon the 

 bones and ligaments of the knee joint, partly upon the 

 tendon of the m. quadriceps femoris, upon the lig. 

 patellae and upon the patella itself (rete patellae). 



