310 THE CIRCULATORY SYSTEM. 
The profunda femoris itself passes between the iliopsoas 
and the pectineus muscles, then 
to the medial surface of the 
adductor femoris. It divides 
into branches which supply 
the pectineus, adductor 
longus, adductor femoris, 
caudofemoralis, quadratus 
femoris, semimembrano- 
sus, and semitendinosus. 
2. A. femoralis (Fig. 
127).—This is the con- 
tinuation of the external 
iliac onto the medial sur- 
face of the thigh. The 
artery lies in a triangular’ 
depression between the 
borders of the sartorius (1) 
and gracilis (9) muscles. The 
floor of the depression is formed 
by the adductor longus (6), pec- 
tineus (5), vastus internus, and DS 
rectus femoris (3) muscles. This 15-5 
triangular depression is known as the ilio- 
pectineal fossa, or Scarpa’s triangle; it con- 
tains also the femoral vein (a) and saphenous 
nerve (g), which pass along with the artery. 
Fic. 127..-SUPERFICIAL ARTERIES, VEINS, AND NERVES ON 
THE MEDIAL SIDE OF THE LEG, 
"a, A. and V. femoralis; 4, N. femoralis; c, A. profunda 
femoris; d@, A. and V. circumflexa femoris lateralis; ¢, ramus 
muscularis; /, A. saphena and V. saphena magna; g, N. 
saphenus; 4, A. and V, articularis genu suprema; 7, N. tibi- 
alis; 7, plantar branch of A. saphena; 4, dorsal branch of A. 
saphena. 1, M. sartorius; 2, M. tensor fasciee latee; 3, M. 
rectus femoris; 4, M. iliopsoas; 5, M. pectineus; 6, M. ad- 
ductor longus; 7, M. adductor femoris; 8, M. semimembra- 
nosus; 9, M, gracilis; 10, M. semitendinosus; 11, medial head 
of M. gastrocnemius; 12, M. plantaris; 13, M. flexor longus 
digitorum; 14, M. tibialis anterior; 15, tibia. 
