Arteries of the Foot. 



439 



480. Arteries of the back of the right foot. 



il. tibialis 

 anterior 



A. tibialis 

 anterior 



Kara us 



perforans a. 



peronaeae 



A. malleolaris 

 anterior 

 lateralis 



3. A. malleolaris anterior lateralis 



(0. T. external malleolar artery) to the 

 malleolis lateralis, unites with the ramus 

 perforans of the a. peronaea and helps to 

 form the rete malleolare laterale upon 

 the lateral malleuliis and its neighhorhood. 



4. A. malleolaris anterior medialis 

 (0. T. internal malleolar artery) goes to 

 the malleolus medialis and helps to form 

 the 7'ete malleolare mediale, situated there. 



A. dorsalis pedis (see also Fig. 

 469) extends forward, upon the ligaments 

 and bones of the back of the foot, between 

 the mm. extensor hallueis longus and ex- 

 tensor hallucis brevis and breaks up between 

 the proximal ends of the ossa metatarsalia 

 I and II into the ramus plantaris profundus 

 and the a. metatarsea dorsalis I. Branches : 



1. Aa. tarseae mediales (0. T. in- 

 ternal tarsal artery), 23, rim upon the 

 bones and ligaments to the medial 

 border of the foot and help to form 

 the rete malleolare mediale. 



2. A. tarsea lateralis (0. T. 

 external tarsal artery) lateral- 

 ward and forward upon the 

 bones and ligaments, covered by 

 the m. extensor digitorum brevis, 

 toward the basis ossis metatar- 

 salis V, unites there with the 

 lateral end of the a. arcuata. 

 Branches which anastomose with 

 one another and, with branches 

 of the a. dorsalis pedis and a. ar- 

 cuata, form the rete dorsale pedis. 



3. A. arcuata (0. T. meta- 

 tarsal arter}") lateralward directly 

 upon the proximal ends of the 

 ossa metatarsalia unites with the 

 a. tarsea lateralis. Branches: 



a) Aa. metatarseae dorsales 11 

 to IV [0. T. tarsal interosseous 

 arteries) nm forward upon the 

 2nd 4th m interosseus dor- 

 salis and each divides into two 

 aa. digitales dorsales (dorsal 

 digital arteries) behaving just 

 as do the arteries to the fingers. 

 Larger rami perforantes pos- 

 terior es and smaller, incon- 

 stant anteriores between the 

 bases (or between the heads) 

 of the ossa metatarsalia, to go 

 to the aa. metatarseae plantares. 



4. Ramus plautaris pro- 

 fiiudus (0. T. communicating, first inter- 

 osseus perforating or plantar artery) between 

 the proximal ends of the ossa metatarsalia I 

 and II, into the sole of the foot, to the arcus plantaris. 



5. A. metatarsea dorsalis I goes forward like 

 the other aa. metatarseae dorsales and supplies the great 

 toe and the medial surface of the 2nd toe. 



Eete 



malleolare 



laterale 



M. peronaeus 

 brevis 



A. tarsea lateralis 



M. extensor 

 digitorum ~" 

 brevis 

 (cut through) 



Eete dorsale 

 pedis 



Rami 

 perforautes 

 posteriores 



Aa. 



metatarseae 



dorsales 



II IV 



Rami 

 perforantes ^~ ^- 

 anteriores 



Aa. digitales^. 

 dorsales 



Rete 

 malleolare 

 mediale 

 A. malleolaris 

 - anterior 

 medialis 



A. dorsalis 

 pedis 



Aa. tarseae 

 mediales 



A. arcuata 



Ramus 

 plantaris 

 profundus 



A. metatarse 

 dorsalis I 



Ramus 



perforans 



anterior 



