242 



MUSCLES OF THE LOWER LIMB. 



inserted into the 'Ower part of the linea quadrati, and into the line 

 prolonied from the linea aspera to the cjreat trochanter ; others pass 

 with increasing degrees of obliquity downwards and outwards, to be 



inserted into the whole length 

 Fis- 190. of the linea aspera, and into the 



line prolonged from it to the 

 inner condyle for about an inch ; 

 finally, the posterior fibres which 

 arise from the ischial tuberosity, 

 descend almost vertically, form- 

 ing the inner border of the mus- 

 cle, and terminate in a narrow 

 tendon, svliicli is inserted into 

 the tuberosity of the inner con- 

 dyle of the femur. 



Fig. 190. — Muscles op the Inner 

 Side of the Thigh and Intekior 

 OF THE Pelvis. (A. T.) i 



1, iliacus ; 2, psoas iiiagnus ; 3, ob- 

 turator intermis, v.ith its fibres con- 

 verging towards tlie lesser sciatic fora- 

 men ; 4, pyriformis, with three heads 

 of origin, and its fibres converging to- 

 wards the great sciatic foramen ; 5, 

 lumbar aponeurosis covering the erector 

 spinas muscle ; 6, gluteus maximus ; 

 7, sartorius, 7', its tendon inserted 

 below the tuberosity of the tibia; 8, 

 adductor longus ; 9, gracilis, 9', its in- 

 sertion i^assing below that of the sar- 

 torius ; 1 0, part of the adductor mag- 

 mis ; 11, semiinembranosus ; 12, semi- 

 tendinosus, 12', its insertion, and be- 

 tween 9' and 12', the tendon of the 

 semimembranosus passing to its inser- 

 tion in tlie inner tuberosity of the tibia. 



Along the femoral attachment 

 the insertion is interrupted by 

 three or more tendinous aiches 

 through which pass the joer- 

 forating arteries, and below the 

 level of the inferior bifurcation 

 of the linea aspera, between the 

 tendinous and fleshy portions 

 of the insertion of the muscle, 

 an interval is left for the trans- 

 mission of the femoral vessels 

 backwards into the popliteal 

 space. Extending upwards from 

 the o]iening for the femoral ves- 

 sels, is an aponeurotic membrane which consists of transverse fibres 

 passing from the surface of the vastus internus to the adductor magnus 

 and adductor longus muscles. It becomes thinner as it ascends, aiid 

 encloses a three-sided passage called Hunter'' s canal, which contains 



