140 ELEMENTS OF MAMMALIAN ANATOMY. 
small that it is frequently not filled by the starch injection, 
but in man it is larger than the radial. 
THE ARTERIES OF THE HIND-LIMB. 
As in the forelimb, the branching of the arteries in the 
hind-limb varies considerably in different specimens. The 
main artery of the leg lies on the ventral or medial aspect 
of the femur, passing obliquely to the caudal side of the 
knee-joint, where it divides into two branches (Fig. 75), 
one extending along the cranial, the other along the caudal 
Fic. 75. ARTERIES OF THE Ricut Lec. VENTRAL ASPECT. 
a, Aorta; at, anterior tibial; af, anterior femoral; cd, caudal; cg, epi- 
gastric; em, external malleolar; fem, femoral; im, internal mal- 
leolar; i, external iliac; it, internal iliac; Ju, iliolumbar ; a, digital ; 
n, digital; o, digital; p, peroneal; pa, profunda; pf, posterior supe- 
rior femoral; pi, posterior inferior femoral; pn, plantar; pp, 
popliteal; pt, posterior tibial; ps, saphenous. 
aspect of the crus. The cat, or at least the caudal half of a 
cat, should be fastened to the dissecting tray on its back, 
