206 



INFERIOR EXTREMITY 



ligament. At first it is placed on the iliacus, but, as it pro- 

 ceeds distally, it inclines medially and thus it crosses posterior 

 to the femoral artery, and conies to lie on the pectineus. 

 Reaching the proximal border of the adductor longus, it passes 

 posterior to that muscle, and is continued distally, close to the 

 body of the femur, in front of the adductor brevis and adductor 

 magnus. Numerous large branches spring from the profunda 



M. rectus femoris (straight head of origin) 



M. rectus femoris (reflected head of origin) 

 Attachment of the lig. 

 ilio-femorale M. adductor longus (origin) 



M. pyramidalis abdominis (origii 

 M. rectus abdominis (origin 



M. semimem- 



branosus (origin) 



M. quadratus 



femoris (origin) 



Mm. biceps and 



semitendinosus 



(origin) 



M gracilis (origin) 

 M. adductor brevis (origin) 



FIG. 76. Muscle-Attachments to the Lateral Surface of the Os Pubis 

 and Os Ischium. 



femoris, so that it rapidly diminishes in size. Ultimately it 

 is reduced to a fine terminal twig, which turns posteriorly 

 through the adductor magnus, and receives the name of the 

 fourth perforating artery. The following are the relations of 

 the profunda femoris: (i) It lies anterior to the iliacus 

 to the lateral side of the femoral artery. (2) It is anterior 

 to the pectineus and posterior to the femoral artery, but 

 separated from it by the femoral vein and the profunda 

 vein. (3) It is anterior to the adductor brevis, and lower 

 down to the adductor magnus and posterior to the adductor 



