

Y58 



MUSCLES OF THE THIGH. 



thigh. Turn aside first the integument, then the super- 

 ficial fascia, bringing in view the fascia lata, which should 

 be carefully examined. The fascia lata being turned off, 

 the muscles are exposed. 



FIG. 249. The tensor vaginas femoris (Fig. 249) 



arises from the outer portion of the ante- 

 rior superior spinous process, tendinous ; 

 becomes fleshy as it descends, and is in- 

 serted thin and broad between the two 

 layers of the fascia lata, below the trochan- 

 ter major, on the outer side of the thigh. 

 Function. To stretch the fascia and 

 turn the foot inward. 



The sartorius tailor's muscle (Fig- 

 249) arises from the anterior superior spi- 

 nous process of the ilium by a short ten- 

 don, and from the notch below. Becom- 

 ing fleshy it forms a flat riband-like mus- 

 cle, which takes a spiral course to the 

 inner side of the thigh ; thence to the back 

 of the inner condyle, forward by the head 

 of the tibia, to be inserted into the inner 

 side of its tubercle by a broad tendon 

 which is continued into the fascia of the 

 leg. In its course it crosses the rectus, 

 vastus internus, and triceps adductor, and 

 is the longest muscle in the body. 



Function. To bend the leg and turn it obliquely inward. 

 The action of both muscles is to cross the legs after the 

 manner of tailors, which has given the name to the muscle. 

 The rectus femoris (Fig. 249) arises by two tendons one 

 round, from the anterior inferior spinous process of the 

 ilium, the other broad, from the superior and outer border 



FIG. 249 represents the Muscles on the anterior part of the Thigh. 1 Crest 

 of the ilium. 2 Anterior superior spinous process. 3 Gluteus medius. 

 4 Tensor vaginae femoris. 5 Sartorius. 6 Rectus femoris. 7 Vastus exter- 

 nus. 8 Vastus internus. 9 Patella. 10 Iliacus internus. 11 Psoas magnus. 

 12 Pectineus. 13 Adductor longus. 14 Adductor magnus. 15 Gracilis. 



