CHAP. V.] 



THE CAT'S MUSCLES. 



157 



These three muscles bend the pelvis or thigh upon the body, and 

 vice versa, and are of great use in running, bounding, and climbing. 



The pectinem is a muscle which descends from the most anterior 

 part of the symphysis pubis and ventral part of the brim of the pelvis 

 to be inserted into the ridge which descends from the lesser tro- 

 chanter to the linea supra, and into the linea itself. It is a small 

 thin muscle, yet it extends half way down the thigh. 



Except at its uppermost part it is inserted by fascia which is 

 much connected with the muscle next described. 



The adductor is a very large muscular mass, and is more or less 



Ai 



Fig. 84. MUSCLES OF INSIDE OF THIGH, SARTORIUS AND GRACILIS BEIXG cur AND REFLECTED. 

 A. Adductor. 

 A i. Abductor indicis. 

 E x 6. Extensor brevis digitorum. 

 E I d. Extensor longus digitorum. 



F I d. Flexor longus digitorum. 



F I h. Flexor longus hallucis. 



(P. Gastrocnemius. 



Gr. Gracilis. 



M. Semi-membranosus. 



Pec. Pectineus. 



Pin. Plantaris. 



Pop. Popliteus. 



Ps. Psoas. 



Rf. Rectus fernoris. 



S. Sartorius. 



Sol. Soleus. 



T. Semi-tendinosus. 



T a. Tibialis auticus. 



Tp. Tibialis postieus. 



T v /. Tensor vaginas femorls. 



V in. Vastus interims. 



incompletely divisible into several parts. It arises from the symphysis 

 pubis, and from the pubis and ischium at each end of the symphysis. 

 It is inserted by muscle into the whole length of the linea aspera, 

 and into the space between the inferior bifurcation of the linea 

 aspera, at the lower end of the back of the femur. It is closely 

 connected at its insertion with the inner head of the gastrocnemius. 



The sartorim arises from the most anterior part of the ventral 

 margin of the ilium. It spreads out into a broad muscular sheet 

 which invests the front and antero-internal part of the thigh, and 



