442 



HUMAN ANATOMY. 



The cubo-scaphoid (Fig. 458) passes crosswise between these bones, close 

 to the last ligament. Its size varies, being in inverse ratio to the articular facet 

 between the bones it unites. 



The cubo-cuneiform (Fig. 458) is a strong band connecting the non-articular 

 surfaces of the cuboid and the outer cuneiform at their distal ends from the plantar 



to the dorsal border. 



The intercuneiform (Fig. 458) are strong ligaments connecting the distal 

 non-articular surfaces of these bones. That from the inner side of the middle 

 cuneiform does not completely separate the joints before and behind it. The 

 arrangement between the middle and outer cuneiforms is variable in this respect. 



The interosseous tarso-metatarsal ligaments (Fig. 458) are an inner and 

 an outer, with an occasional middle one. The inner, a strong band arising from 

 the outer side of the internal cuneiform where it overlaps the second metatarsal, runs 

 obliquely outward and forward, most of its fibres going to that bone, but a few to the 



Astragalo-calcaneal ligament 



Articular surface for cuboid 



Articular surfaces for astragalus 



Sustentaculum 

 The inner part of the right astragalus has been removed. 



outer side of the first metatarsal. The outer interosseous ligament arises from the 

 adjacent sides of the external cuneiform and the cuboid, mingling with the fibres of 

 the ligament already described as passing between them, and runs forward to the 

 inner side of the base of the fourth metatarsal, to the rough surface proximal to the 

 facet, and to the plantar half of the outer side of the third. The middle interosseous 

 liga^nent is inconstant and small. It runs from the outer cuneiform to the second 

 metatarsal. 



The interosseous intermetatarsal ligaments (Fig. 458) are strong 

 bands, best seen on section, between the bases of the four outer bones. The few 

 fibres between the bases of the first and second do not deserve the name. 



The distal intermetatarsal ligament is not an interosseous one, properly 

 speaking, but is mentioned here as it is an important piece of the general framework. 

 It is a fibrous band connecting the glenoid cartilages at the metacarpo-phalangeal 

 joints precisely as in the hand, except that it goes to the great toe as well as to the 

 others. 



THE DORSAL LIGAMENTS. 



The dorsal ligaments of the tarsus are a number of bands of varying degrees 

 of distinctness, all of which, in part at least, assist in forming the capsules of the 

 various joints, although they may extend farther. 



The superior astragalo-scaphoid (Fig. 460) might be divided into an inner 

 part, composed of fibres running from the inner side of the former bone to the inner 

 and dorsal aspect of the latter, and into a dorsal part, running from the margin of 

 the head of the astragalus forward, with an inclination either inward or outward. 



