60 



ARTICULATIONS OF THE FOOT. 



and loose, and is reflected upon some condensed cellular tissue in 

 front, which is sometimes called the anterior ligament. 



Fig. 47. 



Fig. 48. 



ARTICULATIONS OF THE FOOT. 



The astragalus and os calcis are united by a strong, thick, inter- 

 osseous ligament, passing from the groove on the upper surface of 

 the OS calcis to the corresponding one of the astragalus. — Poste- 

 riorly there is a short ligament, called the posterior ligament, upon 

 which plays the tendon of the flexor longus pollicis muscle. 



The OS calcis and scaphoid are united by the superior calcaneo- 

 scaphoid ligament, which passes from the inside of the greater apo- 

 physis of the OS calcis to the outside of the scaphoid and the in- 

 ferior calcaneo-scaphoid, which occupies the triangular interval be- 

 tween the lesser apophysis of the os calcis and the tubercle of the 

 scaphoid. Upon this rests a portion of the head of the astragalus. 



The OS calcis and cuboid are united by the superior calcaneo- 

 cuboid ligament, which is a very thin flat band of fibres extending 

 directly forwards from the os calcis to the cuboid and the inferior 

 calcaneo-cuboid, which consists of two planes of fibres, of which the 

 superficial or inferior layer is a strong band of pearly-white fibres, 

 extending from all the under surface of the os calcis to the groove 

 of the cuboid. The deeper-seated or superior layer, extends from 

 the anterior tuberosity of the os calcis obliquely to the ridge of the 

 cuboid. 



The astragalus and scaphoid are united by a thin semicircular 

 ligament, consisting of parallel fibres, extending from the neck of 

 the astragalus to the margin of the concavity of the scaphoid. 



Cuneiform Bones. — They are united to each other and the sca- 

 phoid, by dorsal, plantar, and interosseal ligaments. 



The Bases of the Metatarsal Bones. — That of the first is united by 

 a strong capsular ligament with the internal cuneiform bone, having 

 a distinct synovial membrane. Those of the second and third are 

 united with the middle and external cuneiform bone, by dorsal and 



