THE STRUCTURE OF THE BONES 



17 



Anterior surface 



Facies anterior 



FRONTAL SECTION. SAGITTAL SECTION. 



FIG. 23. Os CUNEIFORMS 111.. THE EXTERNAL CUNEIFORM BONE. 



Head of the astragalus 

 Caput tali 



Superior articular surface oi the astragalus 



Trochlea tali 



The posterior of the two facets articulating 



with the calcaneum 

 Facies articularis calcanea posterior 



FIG. 24. TALUS, THE ASTRAGALUS, IN SAGITTAL SECTION. 









Posterior articular facet for the astragalus 



Facies articularis posterior 



Articular facet for the cuboid " 



Facies articularis cuboidea 



" Tuberosity of the os calcis 

 Tuber calcanei 



FIG. 25. CALCANEUM, THE Os CALCIS, IN SAGITTAL SECTION. 



Ossa tarsi Tarsal bones : Substantia compacta et substantia spongiosa ossium Compact and 



cancellous tissue of the bones. 



Ossa brevia Short bones. 



