OSTEOLOGY 



Root of the foot 



Tarsal bones 



Ankle bone (0. T. astragalus) 



Head of ankle bone 

 Body of ankle bone 

 Neck of ankle bone 

 Trochlea ("pulley") of ankle bone 



Superior surface 



Medial malleolar surface 



Lateral malleolar surface 

 Sulcus of ankle bone 

 Lateral process of ankle bone 

 Posterior calcanean articular surface 

 Middle calcanean articular surface 

 Groove for the long flexor muscle of 



the great toe 



Navicular articular surface 

 Anterior calcanean articular surface 

 Posterior process of ankle bone 

 Triangular bone 



Heel bone (O. T. os calcis) 



Body of heel bone 

 Calcanean tuber 



Medial process of calcanean tuber 



Lateral process of calcanean tuber 



Support of ankle bone 



Groove for the long flexor muscle of 



great toe 

 Calcanean sulcus 

 Tarsal sinus 

 Anterior articular surface 



Middle articular surface 

 Posterior articular surface 

 Groove for peroneal muscle 

 Trochlear process 

 Cuboid articular surface 



Scaphoid bone of foot 



Tuberosity of scaphoid bone 



First Cuneiform, or Wedge Bone 



Second Cuneiform, orWedge Bone 



Third Cuneiform, or Wedge Bone 



Cuboid bone 



Groove for peroneal muscle 

 Tuberosity of cuboid bone 



Metatarsus, or "after-root" of foot 

 Metatarsal bones I V 



Base 



Body 



Head 



Tuberosity of first metatarsal bone 

 Tuberosity of fifth metatarsal bone 



Phalanges of toes 



First phalanx 



Second phalanx 



Third phalanx 

 Ungual tuberosity 



Base of phalanx 



Body of phalanx 



Trochlea ("pulley or block") of pha- 

 lanx 



Sesamoid bones 



