256 



OSTEOLOGY. 



articularis posterior), which is of more or less oval or oblong form and is 

 placed obliquely from behind forwards and laterally ; this rests upon a corre- 

 sponding surface on the dorsal aspect of the calcaneus. In front of this, and crossing 

 the bone from the medial side laterally and forwards, is a deep furrow (sulcus tali), 



CALCANEUS 



SUSTENTACULUM TALI 



Surface of talus in 



blue rests on the planter 



calcaneo-navicular 



ligament 



XAVICULAR 



FIRST 

 CUNEIFORM 



I. METATARSAL 



SESAMOID BONE 



FIRST OH PROXI- 

 MAL PHALANX 



BOID 



SECOND CUNEIFORM 

 THIRD 

 CUNEIFORM 



I V. METATARSAL 



THIRD OR TERMINAL PHALANX 

 FIG. 255. PLANTAR SURFACE OF THE BONES OF THE RIGHT FOOT. 



the floor of which is pierced by numerous large canals. It serves for the attach- 

 ment of the strong interosseous ligament which unites the talus with the calcaneus, 

 and separates the facet already described from a smaller oval articular area having 

 a slightly convex surface, which lies immediately in front of it. This is call* 

 the middle calcanean facet (facies articularis calcanea media), and articulates witl 



