THE RIBS. 



151 



very near (one centimetre beyond) the tubercle in the second ; it gradually recedes 

 from the tubercle, being in the ninth and tenth about five centimetres distant. The 

 angle is a little nearer in the eleventh, and is wanting in the last. The twist is 

 greatest from the sixth to the ninth rib. Several of the upper ribs present near 



Fig. 175. 



Tuberosity 



Head 



Articular 

 facet 



Articular facets for 

 bodies of vertebrae 



Right fifth tib: A, under surface; B, postero-lateral aspect. 



the middle a rough impression for a point of the serratus magnus. The upper 

 border of the shaft is thick and rounded behind, but thin near the front. The lower 

 border is sharp where it overhangs the stibcostal groove ; less so in front. The 

 anterior end of each rib is cupped to receive the costal cartilage. 



