270 



A MANUAL OF ANATOMY 



the first and second, and usually that of the third and fourth, 

 being situated on the outer side of each shaft, whilst that of 



Internal Surface 

 Medullary Foramen 



For 4th Metatarsal 



Dorsal Surface 



For Peroneus Tertius 



Tuberosity for Peroneus Brevis 



For Cuboid 



Fig. 161. — The Fifth Right Metatarsal Bone (Supero-internal View). 



the fifth is situated on the inner side.* The foramen of the first 

 and the canal to which it leads are directed downwards towards 

 the head or distal end, but that of each of the other four is directed 



For Middle Cuneiform 

 For Internal Cuneiform \ 



For External Cuneiform 

 A\ For Cuboid 



TuberoMty 



Tuberosity 



Fig, 162. — The Bases of the Right Metatarsal Bones 

 (Posterior View). 



Upwards towards the base or proximal end. The first metatarsal 

 receives its nutrient artery from the arteria magna or princeps 

 hallucis, the second from the fourth digital artery, the third usually 



* Of 100 third, and an equal number of fourth, metatarsal bones examined, 

 73 third metatarsals had the medullary foramen on the outer side, and 27 on 

 the inner side ; and 60 fourth metatarsals had it on the outer side, and 40 on 

 the inner side. 



