124 



BOXES OF THE SKULL. 



Fig. 98. 



wall is formed by the malar (6) and a part of the sphenoid 

 bones; the latter bounds the apex of the orbital cone ; in it 

 are pierced holes for the passsage of the optic and other nerves 

 appertaining to the organ of vision. The orbit contains the 

 muscles that move the eye-ball, and in its upper and outer 

 region, the lachrymal gland. 



Fig. 99. [ 249. The greater 



*- part of the nose is form- 

 ed by cartilages, so that 

 L a \ii(jjf in the skull the anterior 



IRrHiaJMr . ., , - 



opening or the nasal 

 1 cavity (fig. 98, 29) is 

 very large, and the 

 "^ osseous portion of the 

 nose formed by the 

 two small nasal bones 

 (fig. 99, 2), makes an 

 inconsiderable promi- 

 nence. The nasal ca- 



Anterior boundary. Posterior boundaiy. vitv is divided by a 

 vertical partition into two fossse, as seen in fig. 99, 5 and 28, 

 which shews the posterior boundary of the nose ; superiorly it is 

 hollowed out of the ethmoid bone, the interior of which is 

 full of cells ; and its floor is formed by the superior maxillary. 



Fig. 100. Fig. 101. [ 25 - Tne 



superior maxil- 

 lary bones (figs, 

 100 and 101) 

 contain the teeth 

 oftheupperjaw; 

 in infancy this 

 bone is compos- 

 ed of several ele- 

 ments, one of 

 which, called the 

 intermaxillary, 

 remains as a per- 

 manently dis- 

 tinct bone in 



monkeys and other quadrupeds, whilst in man it is early sol- 

 dered to the superior maxillary. Fig. 100 shews the internal, 



