336 



Muscles of the I.e<>-. 



M. glutaeus medius with its covering of fascia Crista iliaca 



M. glutaeus 'luaxiuius 



Spina iliaca 

 anterior 

 >- superior 



\ 



\ 



M. sartorius 



]M. 'tensor 

 fasciae latae 



Situation of the 



trochanter major 



femoris 



Sulcus glutaeus ' 



-il. rectus femoris 



Cutis 



M. somitendinosiis 







M. vastus 

 lateralis 



M. biceps femoris 



Tractus iliotibialis [MaissiatiJ 



381. External muscles of the right hip, 



viewed from the lateral surface. 



M. vastus niedialis (0. T. vastus internus) (see Figs. 376379, 387 and 3S8). Form : 

 flat, spindle-shaped, thick. Position: on the medial and anterior surface of the thigh : covered 

 at its origin by the m. sartorius; otherwise superficial; comes into contact behind with the 

 mm. addiu'tores longus ot magnus. Origin: labium mediale lineae asporae femoris. Insertion: 

 the fibers go. parallel, in a curve, latoralward and downward, partly to the m. vastus inter- 

 mcdius, partly, above and medianward from the patella, to the common tendon. From the 

 anterior surface of the m. adductor magnus, approximately from the lower margin of the 

 m. addiu'tor longus on, a tendinous ])late goes to the medial surface of the m. vastus juedialis; 

 this bridges over a triangular vascular canal, which extends obliijuely baclxward and downward, 

 the caiialis adcbictorius iHimteri] (0. T. Hunter's canal), the anterior entrance to which is 

 called tlie hiatus icndineus /addiictoriusj. 



The connnon tendon of the m. quadriceps femoris is attached to the upper and tv the 

 lateral margins of tht; ])atella and partly goes over in front of it, directly into the lig. patellae. 

 Some of the tendon fibers of the mm. vastus medialis and vastus lateralis run however 

 downward beside the patella to the anterior surface of the condyli tibiae and thus form the 

 1-etinacnl.a patellae jnediule et laterale (sih^ Figs. 376 and 3SS), of wliicli the medial one is 

 the broader and the more distinct; to these are also to be added other ligamentous bands which 

 extend from the epicondyli forward to the patella and into whidi also bands of muscle are inserted. 



Action of the mm. vasti: thev (^xtend the leg. Innervation of the same: n. femoralis. 



