THE AXIAL SKELETON 



31 



Superior articular process 

 Processus articularis superior 



'External sacral crest .. 

 Crista sacralis lateralis 



'Median sacral crest 



Crista sacralis media 



Articular sacral crest 

 'Crista sacralis articularis 



"Tuberosity of the sacrum 

 'Tuberositas sacralis 



...Auricular surface 

 Facies auricularis 



Posterior eacral foramina 



" Foiamina sacralia posteriora 



Hiatus of the sacrum 

 Hiatus sacralis 



Sacral cornu 



Cornu sacrale 



Apex of the sacrum 

 ' Apex ossis sacri 



FIG. 58. MALE SACRUM (FACIES DORSALIS DORSAL SURFACE). SEEN FROM BEHIND. 



Sacral canal 



Canalis sacralis 



lutervertebral foramen 

 Foramen inter%'ertebrale 



Median sacral crest 



Crista sacralis media 



Articular sacral crest 

 , *Crista sacralis articularis 



'External sacral crest 

 *Crista sacralis lateralis 



- Lateral mass 

 Pars lateralis 



Posterior sacral foramen 

 Foramen sacrale posterius: 



Anterior sacral foramen 

 Foramen sacrale anterius 



FIG. 59. TRANSVERSE SECTION THROUGH THE SACRUM AT THE LEVEL OF THE FIRST SET OF 



SACRAL FORAMINA. 



Os sacrum fne sacrum. 



