28 HUMAN ANATOMY. 



The anterior border forms part of the splieno-palatine fora- 

 men, which passes between the orbital process and the sphenoidal 

 process. _ 



It articulates with six (6) bones ethmoid, sphenoid, supe- 

 rior maxillary, vomer, inferior turbinated, and fellow of the 

 opposite side. 



Its muscular attachments are azygos uvulae, tensor palati, 

 internal and external pterygoid, and superior constrictor. It 

 has one ossific centre at the junction of the plates. 



THE INFERIOR TURBINATED BONES are small, scroll-like 

 bones, situated on the outer wall of the nasal fossa, separat- 

 ing the middle from the inferior meatus. Each presents two 

 surfaces and three processes, the lachrymal, ethmoidal, and 

 maxillary. 



The internal surface is lined in the recent state with the 

 mucous membrane of the nose. 



The external surface is attached to the superior maxilla and 

 palate-bone, and presents above the three processes. 



The lachrymal process forms part of the lachrymal canal, 

 articulating with the superior maxilla and the lachrymal bone. 



The ethmoidal process articulates with the hook-like process 

 of the ethmoid bone. 



The maxillary process projects outward and downward from 

 the ethmoidal process, and narrows the orifice of the antrum. 



It articulates with four bones ethmoid, palate, superior 

 maxillary, and lachrymal. 



Muscular attachments, none. It has one ossific centre. 



THE VOMER is a thin, triangular plate of bone, contributing 

 to form part of the saeptum nasi. It is usually bent to one side. 



The superior border presents a groove with overlapping 

 lamina?, or vaginal processes, for articulation with the rostrum 

 and vaginal processes of the sphenoid. 



The inferior border articulates with the crests of the supe- 

 rior maxillae and palate-bones. 



The posterior border is smooth and free, forming the pos- 

 terior nasal septum. 



The lateral surfaces present 



Furrows for blood-vessels, and 



N aso-palatine grooves for the naso-palatine nerves, which 

 descend to the foramina of Scarpa. 



It articulates with six bones the ethmoid, sphenoid, two 

 palate, and two superior maxillae. 



It has no muscular attachments. It is developed from a 

 single ossific centre, although it begins as two cartilaginous 

 lamina?, which coalesce. 



