THE BONES OF THE POSTERIOR LIMB 



207 



ing articulation of the human pelvis and involves the ischium as 

 Avell as the pubis. 



In the young animal each half of the pelvis consists of three 

 elements, namely, the ilium, ischium, and pubis. They form the 



c. 



Fig. 95. Lateral surface of the left coxal bone: IL, ilium; IC, ischium; 

 P, pubis, a., acetabulum; a.i., iliac wing; c.i., body of ilium; c.is., body of 

 ischium; c.p., body of pubis; cr., iliac crest; e.i., iliopectineal eminence; f.a., 

 acetabular fossa; f.o., obturator foramen; i.a., acetabular notch; i.mi., lesser 

 sciatic notch; i.mj., greater sciatic notch; l.i., iliopectineal line; p.l., lateral 

 process of ischial tuberosity; r.i.i., inferior ramus of ischium; r.i.p., inferior 

 ramus of pubis; r.s.i., superior ramus of ischium; r.s.p., superior ramus of 

 pubis; s.a.i., inferior anterior spine of the ilium; s.a.s., superior anterior 

 spine; s.i., ischial spine; s.p., symphysis pubis; s.p.i., inferior posterior spine; 

 t.i., ischial tuberosity; t.p., pubic tubercle. 



three rays of the coxal bone and are united with one another in 

 the region of the acetabulum, which is the basin-like depression 

 for the articulation of the pelvis with the femur. Only two of the 

 original elements, however, actually take part in the formation 



