THE BONES, OR OSSEOUS SYSTEM. 335 



NUMBER OF BONES IN THE SKELETON. 



The human skeleton consists of about 252 bones, the 

 number differing three or four in different persons. This 

 is in consequence of the variable number of the sesa- 

 moid bones, which are small seed-like accumulations 

 found about the joints of the great toe and thumb. 



The following list, from Paxton, will show the- names 

 and number of the bones in the head, trunk, and extrem- 

 ities. It must be remembered that there are two corre- 

 sponding sides to the skeleton, and hence one half of 

 the numbers are on each side, except about the head, 

 where only single ones occur. 



Hones of the Head, 55 in Number. 



English. Latin. 



Frontal bone, Os frontis, 1 



Parietal bones, Ossa parietala, 2 



Occipital, Os occipitis, 1 



Temporal, Ossa temporum, 2 



Sphenoidal, Os sphenoides, 1 



Ethmoid, Os ethmoides, 1 



Nasal, Ossa nasi, 2 



Malar, Ossa malarum, 2 



Upper jaw, Ossa maxillare superius, 2 



Palate bones, Ossa palatina, 2 



Inferior turbinated, Ossa turbinata, 2 



Corner, partition of the nose, 1 



Lower jaw, Os maxillare inferius, 1 



Teeth, Dentes, 32 



Tongue bone, Os hyoides. 1 



Bones of the Ear, 8 in Number. 



What is the number of bones in the human skeleton ? What is the number 

 of bones in the head ? What number in the ear ? 



