244 



Articulations. With two bones the astragalus and cuboid. 



Attachment of Muscles. To eight, part of the Tibialis posticus, the tendo Achillis, Plan- 

 taris, Adductor hallucis, Abductor minimi digiti, Flexor brevis digitorum, Flexor accessorius, 

 and Extensor brevis digitorum. 



For navicular 



Neck 



Sup. surface, for tibia 



L For inferior. iibwfibulaT 



ligament 



Tubercle 



For ext. malleolus 



For int. malleolus 



Sup, surface, for tibia 



Groove for Flexor longus 

 hallucis 



For inferior calcaneo- 

 navicular ligament 



Middle calcaneal 

 facet 



Posterior calcaneal 

 facet 



Groove for Flex. 

 long, hallucis 



For navicular 



For navicular 

 Anterior calcaneal facet 



Groove for interosseoux 

 ligament 



FIG. 195. The left astragalus. A. Supero-external view. B. Infero-internal view. C. Inferior view. 



The Astragalus, or Ankle Bone (talus') (Fig. 195). The astragalus is the second 

 largest of the tarsal bones. It occupies the middle and upper part of the tarsus, 

 supporting the tibia above, articulating with the malleoli on either side, resting 

 below upon the os calcis, and joined in front to the scaphoid. This bone may 



