124 



THE SKELETON OF THE LOWER EXTREMITY 



Sacral promontory 

 Promontorium v 



Fifth lumbar vertstant 

 (Vertebra lumbalis V. 



Upper or false 

 pelvis 



Pelvis major 

 Brim or inlet 

 Linea terminalis -- 



Lower or true 

 pelvis 



Pelvis minor 



Sacro-iliao joint 



Articulatio sacro-iliaca 



Anterior superior 

 spine of the ilium 



Spina iliaca 

 anterior superior 



Great trochanter 



Trochanter major 



* Pubic symphysis 

 Symphysis ossium pubis 



FIG. 306. PELVIS MULIEBRIS THE FEMALE PELVIS. ANTERIOR ASPECT. 



The formation of the pelvis out of the sacrum and coccyx and the two innominate bones. The iliac 

 portions of the innominate bones with the base of the sacrum constitute the upper or false pelvis ; 

 the pubic and ischiatic portions of the innominate bones with the sacrum and the coccyx con- 

 stitute the lower or true pelvis ; the boundary between the false and the true pelvis corresponds 

 with the upper aperture or entrance of the true pelvis, the line separating the two being known 

 as the brim or inlet of the true pelvis. Regarded as the means of attachment of the lower limb 

 to the trunk, the pelvis is the cingulum extremitatis inferioris, or pelvic girdle. 



Cingulum extremitatis inferioris Pelvic gird'e. 



