238 



MUSCLES OF THE LOWER LIMB. 



distinguished one fvom tlie other only by the arrangement of their 

 fibres, cover the whole of the anterior and lateral surfaces of the thigh- 

 bone, from which they arise. 



Fig. 189. — Deep Muscles of the Front of 

 THE Thigh. (A. T.) ^^ 



a, anterior superior, and h, anterior inferior 

 spinous process of the ilium ; c, outer and 

 iipper part of the great trochanter ; d, sym- 

 physis pubis ; e, patelhi ; /, inner side of the 

 knee-joint and internal lateral ligament ; g, 

 head of the fibula ; 1, the gluteus iiiedius ; 2, 

 the gluteus minimus ; 3, tendon of the rectus, 

 dividing above into its two portions ; 4, points 

 to the cut tendon of insertion of the ilio- 

 psoas miiscle ; 5, part of the obturator ex- 

 ternus and quadratas fcmoi'is ; 6, i^ectineus ; 

 7, part of the adductor brevis ; 8, adductor 

 magnus ; 9, vastus intsrnus ; 9', its continu- 

 ation down on the outer side; 10, crureus ; 

 11, vastus externus ; 12, tendon of the rectus; 

 1?>, lower part of the slip of the fascia lata by 

 wliich the tensor vagince femoris is inserted 

 into the tibia and fibula. 



a. The rectus feinoris muscle ex- 

 tended in a straight line from the 

 pelvis to the patella, arises by two 

 tendons, one of which is attached 

 to the anterior inferior spinous pro- 

 cess of the ilium, and the other united " 

 to the first within an inch of that 

 point, takes origin from the groove 

 on the dorsum ilii above the brim of 

 the acetabulum. Fi'om the prolonga- 

 tion of the tendon so formed the mus- 

 cular fibres arise pennately, and, turn- 

 ing outwards and backwards as they 

 descend, are inserted in a similar 

 manner into the tendon below, the 

 superior tendon being prolonged on 

 the anterior, the inferior tendon on 

 the posterior surface of the muscle. 

 The inferior tendon forms a broad 

 band inserted into the upper surface 

 of the patella. 



lielations. — Superiorly this muscle is 

 covered by the tensor vaginai femoris, 

 iliacus.and sartorius muscles ; further down 

 it is covered only by fascia. The acetabu- 

 lar tendon lies beneath the gluteus mini- 

 mus. The muscle rests upon the capsular 

 lig-ament of tlie Iiii)-joint, the insertion of the ilio-psoas, the crareus, and parts 

 of the vasti muscles. Behind it also pass the external circumflex artery and 

 a part of the anterior crural nerve. 



b. The vastus externus arises by aa extensive aponeurosis attached 



