TALOCRURAL ARTICULATION OR ANKLE-JOINT 



349 



The Inferior Transverse Ligament. The inferior transverse ligament lies in front 

 of the posterior ligament, and is a strong, thick band, of yellowish fibers which 

 passes transversely across the back of the joint, from the lateral malleolus to the 

 posterior border of the articular surface of the tibia, almost as far as its malleolar 

 process. This ligament projects below the margin of the bones, and forms part 

 of the articulating surface for the talus. 



The Interosseous Ligament. The interosseous ligament consists of numerous 

 short, strong, fibrous bands, which pass between the contiguous rough surfaces of 

 the tibia and fibula, and constitute the chief bond of union between the bones. 

 It is continuous, above, w r ith the interosseous membrane (Fig. 356). 



Synovial Membrane. The synovial membrane associated with the small arthrodial part of 

 this joint is continuous with that of the ankle-joint. 



IV. Talocrural Articulation or Ankle-joint (Articulatio Talocruralis ; Tibiotarsal 



Articulation). 



The ankle-joint is a ginglymus, or hinge-joint. The structures entering into its 

 formation are the lower end of the tibia and its malleolus, the malleolus of the 



Deltoid ligament 

 Talonaiiculat ligament 

 Second dorsal cuneonavic. \ 



ligament \ 



First dorsal cuneonavic. I 

 ligament ^ 



Post, talotibial ligament 



, Medial talocalcaneal lig. 

 Post, talocalcaneal lig. 



1 I 



Articular capsule Medial cuneonavic. lig. ] 



Calcaneocuboid ligament 



Plantar calcaneonavic. 

 liyiment 



Long plantar ligament 

 FIG. 354. ligaments of the medial aspect of the foot. (Quain.) 



fibula, and the transverse ligament, which together form a mortise for the recep- 

 tion of the upper convex surface of the talus and its medial and lateral facets. 

 The bones are connected by the following ligaments: 



The Articular Capsule. 

 The Deltoid. 



The Anterior Talofibular. 

 The Posterior Talofibular. 



The Calcaneofibular. 



