THE SKELETON. 



97 



-/ Fig. 37. 



28. On the sides of the. cranium, we remark an opening for 

 the auditory canal, and on its inferior face or base, we find many 



Expla nation of Fip. 37. Skeleton of man ; the external line indicates the 

 shape of the body. f. the frontal hone. we. the cervical vertebrae, s. the 

 Btemurn, or breast bone, co. the rihs, vl. the lumbar vertebrae, a. the 

 abdomen, sa. the sacrum, cl. the clavicle, o. the scapula or shoulder 

 blade, A. the humerus, r. the radius, c. the cubit us or ulna, c. the 

 carpus, me the metacarpus. p. and pt. the phalanges, or bones of the 

 finders, i. the ilium, fr.the frmur, ro. the rotnla, patella, or knee-pan, 

 ti. the tibia, per. the fibula, ta. the tarsus, mt. the metatarsus. or. the 

 toes, cal the calcis or heel. 



28. Of what use are the neveral holes at the base of the cranium? 



