279 



5. 



M. glutceus medius, 1-95 oz. 



M. glutceus minimus, 0'37oz. 



M. biceps femoris (Fig. 21, a; Fig. 22, b ; Fig. 23, e), . MOoz. 

 Inserted into the back of the lower third of the femur, and by 



fascia down the upper third of the leg ; the resultant plane of 

 all its fibres falls below the knee joint. 



M. semitendinosus (Fig. 23, b), 0'6 1 oz. 



Takes origin from 



the tuber ischii, and 

 is inserted by a flat 

 tendon into the upper 

 point of trisection of 

 the tibia. 



6. If. semimembranosus 

 (Fig. 23,^), 0-67 oz. 

 Origin; the poste- 

 rior line of ischium. 

 Insertion ; into the 

 top of the tibia by 

 a round tendon. 



7. If. gracilis (Fig. 23, 

 a), . . 0-55 oz. 

 Origin ; from the 

 symphysis pubis. 

 Insertion ; beside 

 the semimembrano- 

 sus, and inside the 

 sartor ius, into the 

 upper fourth of the 

 tibia. 



8. 11. sartorius, (Fig. 

 22, e), . . 0-32 oz. 



9. M. adductor longus 

 (Fig. 23, c), 0-90 oz. 

 Origin ; from the 

 spring of the arch 

 of the pubis. 

 Insertion ; into the 

 back of the inner 

 condyle, and one 

 inch up the femur. 



10.1/. adductor mag- 

 nus, . . 3*20 oz. 



Fig. 23. 



COMBINATION OF FLEXORS OF THE KNEE JOINT IN THE MACACUS 

 NEMESTKINUS 



(viewed from behind, in the lithotomy position), 



«, Gracilis. 



b, Semitendinosus. 



c, Adductor longus. 



d, Sem imembranosus. 



e, Biceps femoris* 



f, Gastrocnemius.' 



g, Dislocated patella. 

 7i, Bulb of urethra. 



divides the base line joining the crest of the ilium with the second caudal vertebra in the 

 proportion of 31 to 36. 



