58 



THE BLOOD-VESSELS AND NERVES OF THE FOOT. 



that of the sensitive laminte (laminal plexus) are connected 



by— 



(8) The circumflex vein of the toe (figs. 36 and 37, G). This 



is not perhaps a true 

 vein, but might rather 

 be regarded as a 

 sinus, being formed of 

 several thin -walled 

 tubes or sacs of vary- 

 ing length, which en- 

 circle the lower border 

 of the OS pedis, and 

 are of much greater 

 calibre than the veins 

 of the solar and lam- 

 inal ])lexuses with 

 which they are con- 

 nected. 



(4) The coronary 

 plexus encircles the 

 entire coronet with 

 the exception of the 

 anterior part, cover- 

 ing both the outer 

 and inner surfaces of 

 the lateral cartilage, 

 by which it is divided 

 into a superficial and 



paiiying arteries / are shown too thick ; they should be a dcCT) DOrtion. 



less than half as broad as figured, a, digital artery ; h, r^-, r> • t, 



(«) The superficial 



plexus (fig. 36, By 

 covers the outer sur- 

 face of the lateral car- 



KiG. 38. — Right fore-foot, seenfrom below, behind, and some- 

 what from one side, Tiie outer lateral cartilage is re- 

 moved, together with sufficient of the pedal bone to render 

 visible the vessels, etc., in its interior. The nerves accom 



posterior sutt'raginal artery ; c, artery of plantar cushion 

 (cut through) ; d, posterior artery of coronary circle ; /, 

 plantar artery, which anastomoses with its fellow within 

 the pedal bone, and gives off twigs/', which pass to the 

 anterior surface of the pedal bone, just above its lower 

 edge ; g, twigs of plantar artery supplying cotfin joint ; E, 

 deep lateral layer of coronary plexus, clothing inner sur- 

 face of lateral cartilage ; F, divided ends of superficial part i • p 

 of coronary ple.xus. From these arise the digital vein (not tllao'C, and is lOrmcd 

 shown) ; H, plantar vein ; 4, posterior branch of digital ^ i p i 

 nerve accompanying vessels into pedal bone ; 5, twigs of by VCSSels irom the 

 posterior branch passing towards sensitive lamina;. . . , . -^ 



sensitive laminae. Its 

 veins are larger, and the meshes of the net-work wider than 

 those in the sensitive lamina\ At the upper border and 

 postero-superior angle of the lateral cartilage a number of large 

 veins unite, and, in combination with those of the deep 



