22 OUR BODIES AND HOW WE LIVE 



It is made up of eight bones closely locked together by seams, 

 or sutures, somewhat like the dovetailing used by carpenters. 

 These eight bones are : 



1 Frontal (forehead) i Occipital (back of head) 



2 Parietal (side of head) i Sphenoid (wedge-shaped) 

 2 Temporal (temples) i Ethmoid (sievelike). 



The frontal bone forms the forehead. 



The parietal bones form part of the side walls, top, and 

 back of the skull. 



The temporal bones lie round each ear and form the 

 temples on either side. 



The occipital bone forms the lower part of the back of the 

 skull. This broad, thin bone rests on the topmost bone 

 of the backbone, and is pierced by a large oval opening 

 where the spinal cord joins the brain. 



The sphenoid, or wedge bone, is wedged in between the 

 bones of the cranium and those of the face, and serves to 

 lock together fourteen bones. 



The ethmoid, or sievelike bone, so called because it is full 

 of holes like a sieve, lies in the base of the skull between 

 and above the eye cavities just at the root of the nose. 



33. The Bones of the Face. All bones of the face, except 

 the lower jawbone, are firmly fixed to each other and to 

 the bones of the cranium. 



The face contains fourteen bones, viz. : 



2 Malar, or cheek bones 2 Palate bones 



2 Nasal, or nose bones 2 Lachrymal bones 



2 Upper maxillary, or upper jawbones i Vomer, or plowshare bone 



i Lower maxillary, or lower jawbone 2 Turbinated, or spongy bones. 



34. The Larger Bones of the Face. Under the orbits 

 are the two malar, or cheek bones. Some races have much 



