VERTEBKAL COLUMN 



131 



FIG. 93. 



HUMAN CAUDAL VERTEBRA. 



Man possesses a short tail, in the form of a bony mass composed 

 of four or five rudimentary caudal vertebra? 

 and known as the coccyx 1 (Fig. 93). 



The First and Second Vertebrae exhibit, 

 in addition to a body, traces of articular 

 and transverse processes ; the Third and 

 Fourth, and the Fifth when present, are mere 

 nodules of bone. 



The coccyx has no neural canal. The 



junction Of the COCCyX and the Sacrum pro- 3. transverse process ; 4, 5, 6, lower 



duces four additional sacral foramina. 



COCCYX. POSTERIOR VIEW. 



1, first segment; 2, 2, the cornua ; 

 transverse process ; 4, 5, 

 three coccygeal vertebrae. 



1 (Grr.) a cuckoo, from a fancied resemblance to a cuckoo's beak. 



