226 ANATOMY OF THE LOWER EXTREMITY. 



adductor longus, and beneath these the adductors brevi; 

 and magnus. 



The GRACILIS MUSCLE arises by a thin, flat, and broi 

 tendon from the side of the symphysis pubes and from th< 

 ramus of the pubes and ischium ; it forms a long, ribbon-lik( 

 belly, which, passing down on the inside of the thigh, ter- 

 minates in a tendon, rounded at first, but becoming flat- 

 tened, and is inserted into the head of the tibia, beneath 

 the expanded insertion of the sartorius. 



The ADDUCTOR LONGUS MUSCLE consists of a large fleshy 

 belly, arising by a round, tendinous origin from the front 

 of the os pubis, and inserted into the middle third of the 

 linea aspera by an aponeurosis which is partially confounded 

 with that of the adductor magnus. The dissection of this 

 muscle at its upper part will expose the profunda artery, 

 and at its insertion the femoral artery will be seen in close 

 relation to it. 



Between this muscle and the femur lies the PECTTNEUS, 

 arising by a broad and flat muscular origin from the 

 ilio-pectiueal line, and inserted into the ridge leading from 

 the lesser trochanter to the linea aspera. It is not easy 

 to find the line of separation between this muscle and the 

 conjoined tendon of the psoas and iliacus, the insertion of 

 which into the lesser trochanter may now be seen (p. 200). 



The TRIANGLE or SCARPA is the triangular depression in 

 the upper part of the thigh, the base of which is formed by 

 Poupart's ligament, the outer side by the inner border of 

 the sartorius, and the inner side by the superior border of 

 the adductor longus. The femoral artery runs through the 

 centre of this space, with the femoral vein internal to it ; 

 half an inch external to the artery is the crural nerve, at 

 first deep-seated between the psoas and iliacus, afterward 

 becoming more superficial. 



The FEMORAL ARTERY extends from "Poupart's ligament 

 to the point at which it perforates the adductor magnus 

 muscle ; it is covered in by a strong sheath, common to it 

 and the vein, and occupies the depression existing between 

 the adductor muscles on the inside of the thigh and those 

 which cover the femur upon the outside ; it lies upon the 

 psoas, pectineus, and adductor longus muscles, and the 

 femoral vein, except at the upper part, where it is upon its 

 inner side, lies almost directly behind it ; it is accompanied 

 by the long saphena nerve. The artery disappears through 

 an aperture in the tendon of the adductor magnus muscle, 



