Muscles of the Leg. 



335 



380. Muscles of the 

 right thigh, 



viewed from in front. 



(The muscles have been removed with 



the exception of the nun. obturator 



externus, adductores minimus et 



magnus and vastus intermedins.) 



M. vastus intermedius (0. T. 



crureus) (see also Figs. 378 and 379). 

 Form: flat, oblong. Position: on 

 the anterior side of the thigh, directly 

 upon the bone; in fi'ont covered by 

 the m. rectus femoris; at the sides 

 covered over by the mm. vasti media- 

 lis et lateralis, being fused with them. 

 Origin: anterior surface of the corpus 

 femoris. Insertion: the fibers run 

 parallel downward, covered in front by 

 a thin, fiat tendon, and go, above the 

 patella, into the common tendon (see 

 p. 336). 



M. articularis genu (0. T. sub- 

 crureus) (see Figs. 379, 390 and 392) 

 forms, in a sense, the deepest layer 

 of the preceding muscle. Form: flat, 

 thin. Position: directly upon the 

 lower third of the femur, covered by 

 the preceding muscle. Origin: an- 

 terior surface of the corpus femoris. 

 Insertion: upper and lateral surface 

 of the capsule of the knee-joint. 

 Action: it makes this capsule tense. 



M. vastus lateralis (0. T. vastus 

 externus) (see Figs. 376379, 387 and 

 389). F r m : flat, spindle-shaped, thick. 

 Position: on the lateral surface of 

 the thigh, chiefly supei-ficial, covered 

 only by the m. tensor fasciae latae and 

 the tractus iliotibialis, bounded behind 

 by the m. biceps femoris. Origin: 

 linea intertrochanterica, lateral surface 

 of the trochanter major and labium 

 laterale of the linea aspera femoris. 

 Insertion: the fibers run parallel, 

 in a curve, medianward and downward 

 and are attached partly to the m. vastus 

 intermedius, partly, above and lateral- 

 ward from the patella, to the common 

 tendon (see p. 336). 



Bursa m. glutaei minimi, almost 

 constant, fairly large, between the 

 tendon of tbe m. glutaeus minimus 

 and the trochanter major femoris. 



Trochanter 



major 



\B.''m. glutaci 

 minimi 



M. glutaeus 

 minimus 



Spina iliaca anterior superior 



Spina iliaca anterior inferior 



Ligamentum iliofemorale 



Tuberculum pubicum 



M. obturator 

 externus 



M. adductor 

 minimus 



iSI. adductor 

 magnus 



M. vastus; 

 intermedius 



Tendo m. adductoris 

 magni 



Patella 

 Meniscus lateralis 



Ijigamentum . 



collaterale fibularc \ 



Ligamentum patellae - - 

 Fibula 



Insertion of the 



m. vastus] 

 medialis (cut off) 



Meniscus 

 medialis 



Ligamentum 

 ollaterale tibiale 



22* 



