440 



Arteries of the Foot. 



481. Arteries of the sole of the right foot. 



(The muscles have, fu 



Rete calcaneuin 



Rami calcanei 

 luediales 



A. tibialis 

 posterior 



A . plantaris _ _ __,_ 

 medialis 



M. quadratus _ 

 plantae 



Ramus 

 superflcialis 



A. plantaris 

 lateralis 



Ramus 

 profundus 



M. adductor 

 hallucis 



Arcus _ 

 plantaris 



Ramus plantaris 



profundus a. dor- - 



salis pedis 



Aa. 

 metatarseae 

 plantares ^r^^ 

 I IV 



Rami 

 perforantes 

 antcriores 



- \ 



Aa. digitales,^^ 

 plantares 



r the most part, been removed.) 



A. pliiutaris medialis (0. T. interaal 



phantar artery) goes forward , between the two 

 Uiyers of the hg. hiciniatura (through its upper 

 compartment, see p. 361), and there gives ofl' the 

 /(Wins superftcialif! , which passes through the 

 m. abductor halhicis, giving off branches to 

 it, arrives at the medial margin of the foot 

 and runs as far as the great toe. It then 

 enters the groove between the mm. abductor 

 hallucis and flexor digitorum brevis (ramus 

 J IT fundus), supplies these muscles and the 

 skin and goes, between the two bellies of the 

 m. flexor hallucis brevis, into the a. meta- 

 tarsea plantaris 1 or into the medial a. di- 

 gitalis plantaris of the great toe. 



A. plantaris lateralis (0. T. 



external jilautar artery) runs, between the 

 two layers of the lig. laciniatum (through 

 its lower compartment see p. 361), then 

 between the mm. flexor digitorum brevis 

 anil ((uadratus plantae, forward and la- 

 teralward towards the basis ossis 

 metatarsalis V; there it lies more 

 superficially, between the mm. qua- 

 dratus plantae and flexor digiti V 

 and bends around medianward into 

 the arcus plantaris. It gives off 

 branches to the neighboring bones, 

 ligaments, muscles and skin. 



The arcus plantaris lies di- 

 rectly beneath the proximal ends 

 of the 2"<i to the 4<li metacarpal 

 bone and beneath the mm. inter- 

 ossei, between them and the caput 

 obliquum of the m. adductor hal- 

 lucis, being more superficial lateral- 

 ward than medianward. It dimi- 

 nishes in calibre from the lateral 

 toward the medial margin of the 

 foot, arises, lateralward, directly 

 from the a. plantaris lateralis and 

 unites medianward, between the 

 ossa metatarsalia I and II, with 

 the ramus plantaris profundus of 

 the a. dorsahs pedis. It gives off 

 riH'urrent branches ti> the bones 

 and muscles; running forward from 

 it are the 4 aa. metatarseae plan- 

 tares (0. T. digital or plantar di- 

 gital arteries). Each of these passes 

 forward between two metacarpal 

 bones, receives the rami perforantes 

 of the aa. metatarseae dorsales and divides 

 at the bases of the first phalanges into the 

 aa. diffitales plantares (0. T. collateral 

 digital arteries), which behave just as do 

 thnse to the fingers. The artery for the 

 uieilial margin of the grt>at toe is usually given off 

 by the a. metatarsea plantaris I ; that for the lateral 

 margin of the little toe arises usually as a separate 

 arterv from the end of the a. plantaris lateralis. 



