MUSCLES OF THE POSTERIOR LIMBS. 



299 



on the external side of the leg, between the preceding and the deep flexor of 

 the phalanges, is composed of a muscular portion and a tendon. The first, 



Fig. 135. 



EXTERNAL DEEP MUSCLES OF EIGHT POSTERIOR LIMB. 



1, Crest of the ilium ; 2, Inferior sacro-sciatic ligament ; 3, Sacro-ischiatic ligament ; 

 4, Obturator ligament ; 5, Tuberosity of the ischium ; 6, Anterior tuberosity of 

 the ilium ; 7, Small gluteus, or gluteus internus ; 8, Its insertion into the great 

 trochanter, 9; 10, Iliacus, or iliac psoas ; 11, Vastus externus ; 12, Rectus; 13, 

 Great sciatic nerve; 14, Gracilis ; 15, Sartorius ; 16, Patella; 17, Lateral liga- 

 ment; 18, Oblique flexor of the phalanges, or flexor pedis accessorius ; 19, Pero- 

 neus; 20, Extensor pedis ; 21, Solearis, or plantaris ; 22, Gastrocnemius externus ; 

 23, Flexor pedis ; 24, Tendon of oblique flexor of the phalanges ; 25, Perforates 

 tendon ; 26, Lateral ligament of gastrocnemius ; 27, 28, Annular ligament ; 29, 

 Tendon of lateral extensor of the phalanges, or peroneus; 30, External rudi- 

 mentary metatarsal bone. 



elongated, prismatic, and slightly penniform, extends in the direction of the 

 leg, from the superior extremity of that region to beyond its inferior extre- 

 mity. The tendon succeeds the lower end of the muscular portion, and 

 traverses the groove on the middle of the infero-external tuberosity of the 



