THE BONES AND JOINTS. 



19 



3, There are 206 bones ia the body: 

 In the head 



f spinal column .... 26 



In the trunk . ] ribs 24 



sternum 1 



I hyoid 1 



In the upper limbs 64 



In the lower limbs 62 



206 



BONES OP THE HEAD AND TRUNK. 



SECTION II. 1, The skull is poised on the top of the 

 spinal column, and contains twenty-eight bones. In the 

 young infant they are 

 loosely united, but in 

 time many of them 

 become welded to- 

 gether so that they 

 can not be separated. 

 The lower jaw, and 

 the small bones of the 

 ear, are the only ones 

 of them that are mov- 

 able. Besides contain- 

 ing the brain, the skull 

 protects the organs of Fig. 2. 



hearing, Of Smell Of THE SKULL. 1. Frontal bone. 2. Parietal bone. 



_, f 3. Occipital bone. 4. Temporal bone. 5. Nasal 



VlSlOn, and OI taste. bone. 6. Malar bone. 7. Superior maxillary bone. 



2, The SDinol C0l~ *** Lachrymal bone. 9. Inferior maxillary bone. 



umn, or backbone, consists of twenty-four vertebrae, the 

 sacrum, and the coccyx. The vertebrae (Latin, verier e, to 

 turn) are so called because they form an axis on which the 

 body turns. They are irregular in shape, and consist of 



