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HEALTH AND DISEASE 



cesses, which are directed horizontally outwards. The last two are much 

 thicker and somewhat shorter than the rest, and are united to each other 



Fig. 285. Lumbar Vertebra 



1 Superior Spincms Process. - Anterior Oblique Process. 3 Transverse Process. 4 Anterior 

 Articular Face of Body. 5 Spinal Canal. 



by the borders of their transverse processes, and to the transverse process 

 of the sacrum by synovial articulations. 



The Sacrum (fig. 286) or rump bone, as we have already pointed 



Fig. 286, Sacrum (Side View) 



1 ' Superior Spinous Processes. 2 Transverse Process. 3 Articulation for Last Lumbar Vertebra. * * 6 7 Superior 

 Sacral Foramina for the passage of the Superior Sacral Nerves. 



out, is a large single triangular bone in the adult, resulting from the 

 welding together of five vertebrae, which are separate in the foetus. It 



