314 



THE CIRCULATORY SYSTEM. 



foot (Fig. 128). Here it-receives one or two small branches 

 i^a and d) from the plantar branch of A. saphena (forming 



with them the plantar arch 

 ic)), and passing distad and 

 slightly laterad, divides into 

 three main portions (^■). These 

 (Aa. digitales plantares) pass 

 to the three intervals between 

 the digits. The medial one 

 passes along the lateral side 

 of the second digit; the next 

 divides, sending a branch to 

 the lateral side of the third 

 digit and the medial side of 

 the fourth ; the lateral one 

 passes along the medial border 

 of the fifth digit. The Aa. 

 digitales plantares send num- 

 erous branches to the interos- 

 seous muscles. 



Branches of the tibialis, 

 anterior : 



a. A. tibialis recurrens. 

 — Immediately after passing 

 through the interosseous mem- 

 brane the anterior tibial sends 

 a small artery proximad to the 

 knee-joint. 



Ik Rami musculares. — 



Numerous short branches 



^ ^ , throughout the course of the 



Fig. 128. — Deep Arteries on the ° 



Plantar Surface of the Foot. artery, to the muscles about it. 



a, medial twig from plantar branch of ^.^ RamUS SUperficialiS.— 



A. saphena; b, A. tibiahs anterior (or ^ 



plaiUaris profunda); r, plantar arch; d, A larger branch leaves the 

 lateral twig from plantar branch of A. ,, r r ^i ^rterv 



saphena; e, terminal branches from A. lateral SUriace Ol tne artery 



tibialis anterior. about one-tliird the distance 



from the knee to the ankle and passes along with the super- 

 ficial peroneal nerve, at first beneath M. peroneus longus, then 



