THE SKELETON OF THE LOWER EXTREMITY 



147 



Calcaneum 

 Calcaneus 



Cuboid ouno 

 Os cuboideum 



Centre of ossification of the external 

 cuneiform bone 



Centres of ossification of the heads of 

 the metatarsal bones 



Centres of ossification of the proximal 

 extremities of the phalanges 



The astragalus 

 Talus 



Centre of ossification of the navicnlar bone 



Centre of ossification of the middle cuneiform bone 

 Centre of ossification of the internal cuneiform bone 



Centre of ossification of the base of the 

 metatarsal bone of the great toe 



Centres of ossification in the proximal 



extremities of the phalanges of 



the great toe 



FIG. 375. OSSIFICATION OF THE BONES OF THE FOOT IN A GIRL AGED Six YEARS. 



Epiphysis beginning to unite 



Centre of ossification of the 



epiphysis of the tuberoib> oi 



the calcaneum 



Outer tubercle of the tuberosity 

 of the calcaneum 



Processus lateralis tuberis 



It Inner tubercle of the tuberosity 



of the calcaneum 



Processus medialis tuberis 



FIG. 376. FROM A GIRL AGED FIG. 377. FROM A YOUNG MAN AGED EIGHTEEN 



EIGHT YEARS. YEARS (EPIPHYSIS BEGINNING TO UNITE). 



EPIPHYSIS OF THE TUBEROSITY OF THE CALCANEUM. 



Development of the Bones of the Foot. 



19 2 



