I I IK SKI-.I 



45 



and by these surfaces the skull rests on the vertebral column. 

 The rest of the base of the cranium in front of the occipital 

 horn- i-. fornu-il chiefly by a very irregularly -shaped bone called 

 the sphenoid, and by a part, the petrous part, of the 

 temporal hones. 



Bones of the Pace. The bones of the face consist of 

 die hones of the upper and lower jaws, the nose, cheeks, and 

 palate. The orbits or sockets for the eyCs arc formed by 



FIG. 17. Side view of the skull. 



f t frontal bone ; /, pariet.il ; o, occipital ; a, wing of sphenoid ; i , flat part of 

 temporal ; c, nt, it, other parts of temporal ; an, opening of ear or external 

 auditory canal ; t, process of temporal passing to/, the cheek Iwne ; nvc, the 

 upper jaw Ixine ; , nasal bone ; /, lacrymal ; //, part of sphenoid. The lower 

 jaw bone is drawn downwards ; ey, its process which articulates with the temporal ; 

 cr, its process to which muscles of mastication arc attached ; ///, ty, hyoid bone. 



the upper jaw bone below, by the frontal bone above, and the 

 cheek bones at the outer side with a small bone, the lacrymal, 

 in each orbit. The lower jaw bone is the strongest and 

 thickest bone of the fare. It is shaped like an arch, with 

 the bend of the arch forward forming the chin, and with 

 two flat side pieces passing backwards and upwards to the 



