THE LIGAMENTS. 117 



2. Ligg. plantaria. Those of the second and third cuneiform bones are 

 indistinct; on the contrary, that of the first very strong, from tuberr. oss. navinil. 

 to that of the cuneifarme L; losing itself in the tendon of the m. tibialis anticus, 

 which is extended to the Os cuneiforme HI. and Os metatars. HI., and forms 

 lig. tarsi inferius. 



b. Ossa cuneiformia are united together by very firm trans- 

 verse 



1. Ligg. dorsalia ; connected above with the mm. extensores digitor.; below, 

 with the periosteum. 



2. Ligg. interossea, very strong, and firmly attached. 



c. Os cuneiforme HI. and os cuboideum are united by very 

 strong transverse 



1. Lig. dorsak. 



2. Lig. interossewn, around the articular surface. 



3. Lig. plantare, thin. 



d. Os naviculare and os cuboideum united by 



1. An oblique Lig. dorsak. 



2. Lig. interosseum. 



3. Lig. plantare, very thick, transverse from tuber, oss. navicul. to the os 

 cuboideum. 



135. III. Connection of the first with the second row. 



a. Talus and os naviculare. The fossa of the navicular 

 bone, in which the head of the talus is received, is deepened by 



1. Lig. calcaneo-nav iculare inferius (plantare); it forms the internal portion, 

 and lies in the triangular space between proc. minor, calcan. and os naviculare ; 

 consists sometimes of an internal and external portion, the last round and 

 cartilaginous; is sometimes represented by a thin, osseous plate from the 

 calcis, so that the Calcaneus and os naviculare come into immediate contact. 



2. Lig. Calcaneo-naviculare superius (dorsale), from the internal side of tho 

 anterior extremity of the Calcaneus to the external of the os naviculare; in the 

 deep hollow on the outside of the Talus, which is filled with fat. 



The talus is also firmly united with the os naviculare^ by 

 means of the calcaneus only, but it may, by strong concussion, 

 escape from its connection. Its own ligament is weak, namely : 



3. Lig. astragalo-naviculare superius, from Collum tali to the circumference of 

 the articular surface of Os naviculare; above, covered by m. extens. digitor. 

 brevis; semicircular. 



b. Calcaneus and os cuboideum, the articular surfaces recipro- 

 cally coincide. Tubercle on the Calcaneus, important in Ampu- 

 tation. 



Ligaments: 1. Lig. cakanco-cuboideum plantare, the strongest of the tarsal 

 liniments; passing from the entire inferior surface of the Calcan. to the pos- 

 terior of the Os cuboid., it may be divided into a superficial and deep. 



2. Lig. cak.-cub. intei-num, short, narrow, strong, in the fos^a between talut 



