THE METATARSAL BONES 109 



The internal cuneiform presents for examination internal, 

 external, anterior, posterior, plantar, and dorsal surfaces. 



Articulations. Scaphoid, middle cuneiform, first and second 

 metatarsal bones. 



Attachments of Muscles. Tibialis anticus and posticus and 

 peroneus longus. Also receives attachments of ligaments. 



The middle cuneiform presents the same surfaces as the 

 preceding bone. 



Articulations. Scaphoid, internal, and external cuneiform, 

 and second metatarsal. 



Attachment of Muscles. A slip from the tibialis posticus. 



The external cuneiform is situated between the scaphoid 

 behind, the third metatarsal in front, the middle cuneiform 

 internally, and the cuboid externally. It presents the same 

 surfaces as the former bone. 



Articulations. Scaphoid, middle cuneiform, cuboid, and 

 second, third, and fourth metatarsal bones. 



Attachments of Muscles. Part of tibialis posticus and flexor 

 brevis hallucis. Also receives attachments of ligaments. 



The reader is referred to the standard anatomies for a more 

 detailed description of the tarsal bones (Author). 



The Metatarsal Bones 



The metatarsal bones are one to five in number; they articu- 

 late with the tarsal bones behind and the respective phalanges 

 in front. They present for examination a shaft, a proximal 

 extremity, or base, a distal extremity, or head. 



The first is the shortest and thickest, the second is the 

 largest, and the fifth the thinnest. Each bone has a nutrient 

 canal on its plantar surface. 



Articulations. 



First bone (proximal extremity; internal cuneiform, second meta- 

 tarsal (occasionally), 

 internal, middle, external cunei- 



Secondbone 



I third and (occasionally) first meta- 



tarsal. 

 Third bone external cuneiform, second and 



fourth metatarsal. 

 Fourth bone external cuneiform, cuboid, third 



and fifth metatarsal. 

 Fifth bone cuboid and fourth metatarsal. 



