136 



Bones of the Lower Extremity. 



metatarsi 717 



190. The Rio-lit Cuboid 

 Bone, Os cuboideum, 



from above. 



191. The Rio-lit Cuboid 

 Bone, Os cuboideum, 



from below. 



The cuboid bone is situated in front of the Os cede is at the 

 outer side; of the foot. The inferior surface presents a tuberosity, 

 Tiiberosita* o*sis cidtoidei, in front of which is a groove, Widens ossis cnltoidei, 

 running inwards and forwards ; it lodges the tendon of the J/. pi'roneus 

 lon'jus. The articular surfaces of the cuboid bone are: a posterior 

 for articulation with the Os cede is ; an internal for the external cunei- 

 form bone; two anterior for the bases of the fourth and fifth meta- 

 tarsal bones. Sometimes a fifth very small articular facet is present on 

 the internal surface of the bone, for articulation with the scaphoid bone. 



