228 



Till] SKELETON. 



it proceeds downwards from tho acetabulum, expands into a large tuberosity, 

 auu then, curving upwards, forms with tho descending ramus of the pub. 

 large aperture, tho obturator foramen. 



Tin- I'ubes is that, portion which runs horizontally inwards from tho inner 

 side of tho acrtalmlmn lor about two inches, then makes a sudden bend, und 

 descends to the same extent; it forms the front of tho pelvis, supports the 

 external organs of generation, and has received its name from being covered 

 with hair. 



The7/mm presents for examination two surfaces, an external and an internal, 

 a crest, and two borders, an anterior and a posterior. 



External surface or dorsum of the ilium (Fig. 104). Tho back part of this 



Fig. 164. Right Os Innomiuatum. External Surface. 



CIULUlf 



/surface is directed backwards, downwards, and outwards; its front part for- 

 wards, downwards, and outwards. It is smooth, COUVOX in front, deeply eon- 



