I 



FEi 



with the symphysis; and soon expands into a broad fleshy belly. This passes 

 downward, backward, and lateralw r ard, and is inserted, by an aponeurosis, into the 

 linea aspera, between the Vastus medialis and the Adductor magnus, with both 

 of which it is usually blended. 



The Adductor brevis (Fig. 433) is situ- 

 ated immediately behind the two preceding 

 muscles. It is somewhat triangular in form, 

 and arises by a narrow origin from the 

 outer surfaces of the superior and inferior 

 rami of the pubis, between the Gracilis 

 and Obturator externus. Its fibers, passing 

 backward, lateralw r ard, and downward, are 

 inserted, by an aponeurosis, into the line 

 leading from the lesser trochanter to the 

 linea aspera and into the upper part of the 

 linea aspera, immediately behind the Pectin- 

 eus and upper part of the Adductor longus. 



The Adductor magnus (Fig. 433) is a large 

 triangular muscle, situated on the medial side 

 of the thigh. It arises from a small part 

 of the inferior ramus of the pubis, from the 

 inferior ramus of the ischium, and from the 

 outer margin of the inferior part of the 

 tuberosity of the ischium. Those fibers 

 which arise from the ramus of the pubis are 

 short, horizontal in direction, and are inserted 

 into the rough line leading from the greater 

 trochanter to the linea aspera, medial to the 

 Glutseus maximus ; those from the ramus of 

 the ischium are directed downward and lat- 

 eralward with different degrees of obliquity, 

 to be inserted, by means of a broad aponeu- 

 rosis, into the linea aspera and the upper 

 part of its medial prolongation below. The 

 medial portion of the muscle, composed 

 principally of the fibers arising from the 

 tuberosity of the ischium, forms a thick 

 fleshy mass consisting of coarse bundles 

 which descend almost vertically, and end 

 about the lower third of the thigh in a 

 rounded tendon which is inserted into the 

 adductor tubercle on the medial condyle of 

 the femur, and is connected by a fibrous 

 expansion to the line leading upward from 

 the tubercle to the linea aspera. At the 

 insertion of the muscle, there is a series of 

 osseoaponeurotic openings, formed by tendi- 

 nous arches attached to the bone. The 

 upper four openings are small, and give 

 passage to the perforating branches of the 

 profunda femoris artery. The lowest is of 

 large size, and transmits the femoral vessels 

 to the popliteal fossa. FlG " 433 - Dee P mu r s e c g 1 f s n of the medial femoral 



