CHAPTER XI. 



CA.Ur)i^L REGIOISr. 



OSTEOLOGY. 



Caudal vektebjrjs. — Fifteen to eighteen in number, 

 in which tlie general characters of the vertebrse are 

 easily recognized in the anterior ones, but which by 

 degrees disappears till the last, where it constitutes a 

 small elongated somewhat conical bone. 



SYJ^DESMOLOGY. 



Articular surfaces are the facets of the bodies of 

 the vertebrae. Means of union are an inter articular 

 cartilaginous meniscus and longitudinal ligamentous 

 fibres. 



MYOLOGY. 



Three sacro-coccygeal and one ischio-coccygeal mus- 

 cles. 



1. Sacro-coccygeal superiok. — Synonyms. Erec- 

 tor coccygis, (P). Attachments : Summits and sides 

 of three or four last processes of the sacral spine and 



