BONES 



45 



TABLE U— Continued 



Bodies : 



Fourth thoracic to sixth lum- 

 bar 



Extended to all thoracic and 

 all four sacral 



Extended to seventh cervical 

 and fourth caudal 



Extended to third cervical and 

 seventh caudal 



Extended to first cervical with 

 2nd cervical doubtful 



Extended to all cervical and to 

 22nd caudal vertebrae 



Extended to 28th caudal 



Sterniuu : 



Centers I to IV 



V to VI (posterior) 



Ribs: 



Ribs II to XI 



All ribs at 



Limbs : 



Clavicle 



Humerus 



Radius (very slight) 



Ulna (very slight) 



Scapula 



Ilium 



Femur 



Tibia 



Fibula 



Pubis 



Ischium 



AGE PERIOD 



Prenatal 



Days Hours 



18 



19 



21 



10 

 10 



10 



Birth 

 Days Hours 



Postnatal 

 Days Hours 



22 



19 



3 

 21 



