224 



Joints of the Lower Extremity. 



Ligamentum calcaneocuboideum plantare 



Ligamentum cuboideonaviculare plantare 



Os cuboideum 



Sulcus m. peronaei-- 



[longi] 

 Tuberositas ossis cuboidei 



Deep layer of the 



ligamentum plantare 



longum 



Calcaneus 



+Jg - Os naviculare 



..Groove for the tendo 

 m. tibialis posterioris 

 Fibrocartilago navicularis 



Ligamentum calcaneo- 

 naviculare plantare 



Talus 



---Sulcus m. flexori.s hallucis 

 longi 



Groove for the tendo 

 /' in. llexoris digitorum longi 



-' ---Ligamentum talocalcaneum 

 mediate 



269. Joints of the right foot, articulationes pedis, 



viewed from the sole of the foot. 



(The cuneiform bones and the metacarpal bones have hem removed, the superficial layer and 



the most anterior processes of the ligantentwD plantare longum have been cut off, the capsulae 



articulares except the strengthening ligaments have heen removed.) 



Articulationes intertarseae (continued). Ligameuta tarsi plantaria (continued). 

 The ligamentum calcaneocuboideum plantare (0. T. short calcaneocnboid or short plantar 

 ligament) (see also Fig. 268) is a broad band of short fibres which go from the anterior end 

 of the lower surface of the calcaneus to the lower surface of the os cuboideum ; they are partially 

 covered by the ligamentum plantare longum which lies more superficially and is more or less 

 intimately fused with it. 



The ligamentum calcanconavicularc plantare (0. T. inferior calcaneonavicular ligament) 

 (see also Figs. 265, 267 and 268) arises as a thick, broad mass of fibres from the anterior 

 and medial margin of the sustentaculum tali of the calcaneus and is fastened to the posterior 

 end of the inferior and medial surface of the os naviculare. The ligament, the bands of which 

 extend essentially from behind forward and connect dorsalward with the ligamentum tibio- 

 naviculare, forms a trough which is concave upward and lateralward (see Fig. 267); its upper 

 concave surface is lined by synovial membrane, belongs to the articulatio talocalcaneonavicularia 

 and forms a part of the socket for the caput tali (see p. 222). At the junction of the inferior 

 with the medial surface a slightly curved fibre-cartilaginous disc, fibrocartilago navicularis, is 

 enclosed. The medial, inferior surface of the ligament is hollowed out to form a shallow groove 

 and serves for the reception of the tendon of the m. tibialis posterior. 



