INTERNAL FEMORAL REGION. 



to the crest of the pubes, and is continuous with the fascia covering the outer 

 surface of the muscle; the fibres pass downwards, backwards, and outwards, 

 to be inserted into a rough line leading from the trochanter minor to the linea 



aspera. 



Relations. By its anterior surface, with the pubic portion of the fascia lata, 

 which separates it from the femoral vessels and internal saphenous vein. By its 

 posterior surface, with the hip-joint, the Adductor brevis and Obturator externus 

 muscles, the obturator vessels and nerve being interposed. By its outer border, 

 with the Psoas, a cellular interval separating them, upon which lies the femoral 

 artery. By its inner border, with the margin of the Adductor longus. 



The Adductor Longus, the most superficial of the three Adductors, _ is a flat 

 triangular muscle, lying on the same plane as the Pectineus, with which it is often 

 blended above. It arises, by a flat narrow tendon, from the front of the pubes, at 

 the angle of junction of the crest with the symphysis ; it soon expands into a broad 

 fleshy belly, which, passing downwards, backwards, and outwards, is inserted, by 

 an aponeurosis, into the middle third of the linea aspera, between the Vastus 

 internus and the Adductor magnus. 



Relations. By its anterior surface, with the fascia lata, and, near its insertion, 

 with the femoral artery and vein. By its posterior surface, with the Adductor 

 brevis and Adductor magnus, the anterior branches of the obturator vessels and 

 nerve, and with the profunda artery and vein near its insertion. By its outer 

 border, with the Pectineus. By its inner border, with the Gracilis. 



The Pectineus and Adductor longus should now be divided near their origin, and turned down- 

 wards, when the Adductor brevis and Obturator externus will be exposed. 



The Adductor Brevis is situated immediately beneath the two preceding muscles. 

 It is somewhat triangular in form, and arises by a narrow origin from the outer 

 surface of the descending ramus of the pubes, between the Gracilis and Obturator 

 externus. Its fibres, passing backwards, outwards, and downwards, are inserted, 

 by an aponeurosis, into the upper part of the linea aspera, immediately behind the 

 Pectineus and upper part of the Adductor longus. 



Relations. By its anterior surface, with the Pectineus, Adductor longus, and 

 anterior branches of the obturator vessels and nerve. By its posterior surface, 

 with the Adductor magnus, and posterior branches of the obturator vessels and 

 nerve. By its outer border, with the Obturator externus, and conjoined tendon 

 of the Psoas and Iliacus. By its inner border, with the Gracilis and Adductor 

 magnus. This muscle is pierced, near its insertion, by the middle perforating 

 branch of the profunda artery. 



The Adductor brevis should now be cut away near its origin, and turned outwards, when the 

 entire extent of the Adductor magnus will be exposed. 



The Adductor Magnus is a large triangular muscle, forming a septum between 

 the muscles on the inner part and those on the back of the thigh. It arises from 

 a small part of the descending ramus of the pubes, from the ascending ramus of 

 the ischium, and from the outer margin and under surface of the tuberosity of the 

 ischium. Those fibres which arise from the ramus of the pubes are very short, 

 horizontal in direction, and are inserted into the rough line leading from the great 

 trochanter to the linea aspera, internal to the Gluteus maximus ; those from the 

 ramus of the ischium are directed downwards and outwards with different degrees 

 of obliquity, to be inserted, by means of a broad aponeurosis, into the whole length 

 of the linea aspera and upper part of its internal bifurcation below. The internal 

 portion of the muscle, consisting principally of those fibres which arise from the 

 tuberosity of the ischium, forms a thick fleshy mass consisting of coarse bundles 

 which descend almost vertically, and terminate about the lower third of the thigh 

 in a rounded tendon, which is inserted into the tubercle above the inner condyle 

 of the femur, being connected by a fibrous expansion to the line leading upwards 

 from the tubercle to the linea aspera. Between the two portions of the muscle, 



