66 ANATOMY. 



(2.) The scaphoid, cuboid, and three cuneiform bones are united by an ir 

 regular number of Dorsal and Plantar and 4 Interosseus ligaments, whicli 

 latter are arranged transversely. 

 (3.) The 2 rows of bones are united by 7 ligaments viz. 



Superior A sir agalo- scaphoid. Inferior Calcaneo-scaphoid. 



Superior Calcaneo-cuboid. Short Calcaneo-cuboid. 



Superior Calcaneo-scaphoid. Long Calcaneo-cuboid. 



Interosseous, or Internal Calcaneo-cuboid. 



Describe the Tarso-metatarsal Articulations. They are 5 arthrodial 

 joints formed by the bases of the metatarsal bones with the adjacent bones 

 of the tarsus, the 2d metatarsal bone articulating with all 3 cuneiform in 

 the recess formed by the shortness of the second cuneiform. They are united 

 by Dorsal, Plantar, and 3 Interosseous Ligaments. The 2d metatarsal bone 

 has 3 dorsal ligaments, I from each cuneiform bone. The interosseous 

 ligaments pass from the 2d and 3d metatarsal bones to the internal and Ex- 

 ternal cuneiform. 



Describe the Synovial Membranes of the Tarsus and Metatarsus.. 

 They are 6 in number, and are situated as follows, viz. 



The First, between the os calcis and the astragalus, behind the interosseous 



ligament. 

 The Second, between the same bones in front of the interosseous ligament, 



also between the astragalus and the scaphoid. 

 The Third, between the os calcis and the cuboid. 



The Fourth, between the scaphoid and the 3 cuneiform bones, running 

 backwards between the scaphoid and the cuboid, forwards between the 

 cuneiform bones, between the external cuneiform and the cuboid, between 

 the middle and external cuneiform and the bases of the 2d and 3d 

 metatarsal, passing also between the bases of these bones and the 4th 

 metatarsal. 

 The Fifth, between the cuboid and the 4th and 5th metatarsal bones, also 



running forwards between their bases. 



The Sixth, between the internal cuneiform and the base of the 1st meta- 

 tarsal bone. 



Describe the Metatarso-metatarsal Articulations. The metatarsal bones 

 are connected together, except the first, at their bases by Dorsal, Plantar, and 

 Interosseous Ligaments ; and all 5 are connected at their digital extremities 

 by the Transverse Metatarsal Ligament. 



Describe the remaining Articulations of the Foot. The metatarso- 

 phalangeal and the phalangeal articulations are similar to those in the hand, 

 each having an Interior or Plantar, and 2 Lateral Ligaments. The extenso* 

 tendons of the foot supply the places of posterior ligaments. 



