THE LIMBS OF THE HORSE 



147 



Dissection. — The plantar aspect of the pes — tarsus, metatarsus, and 

 digit — now remains to be examined. After the skin has been removed, 

 it will be found that the arrangement of the fascia is similar to that of 

 the thoracic limb {q.v.). 



M. FLEXOR DiGiTORUM BREVis.— In the dissection of the leg the 

 plantaris tendon was found to be flattened where it plays over the 

 summit of the tuber calcanei, and to be attached by slips to the sides 

 of the tuber. From this point the tendon appears to be continued down 



AI. extensor digitorum longus. 



A. dorsalis pedis. 



SI. tibialis anterior 



h\g. collaterale 

 tibiale. 



Central tarsal bone, 

 scaphoid). 



M. flexor digitorum longus 



_ . M. peronreus longus. 



-Fourth tarsal bone 

 (cuboid). 



Lig. tarsi plantare. 



M. flexor digitorum 



profundus. 



I "N-j r M. plantaris. 



Callosity. 



A. tarsea medialis. 

 Nn. plantrires. 



Fig. 100.— Section across the Tarsus at the Level indicated by U in Fig. 81. 



the back of the metatarsus; but there is good ground for supposing 

 that the short flexor of the digit has lost its muscular tissue and has 

 become continuous with the extremity of the plantaris tendon. The 

 long, flattened continuous tendon thus produced comports itself exactly 

 as does the metacarpal portion of the superficial flexor tendon of the 

 thoracic limb {q.v.). 



M. FLEXOR DIGITORUM PROFUNDUS. — As has been seen, the strong, 

 rounded tendon produced by the union of the flexor hallucis longus and 

 tibialis posterior immediately proximal to the end of the tibia traverses 

 the grooved posterior surface of the calcaneus, where it is bound down 

 by a stout ligamentous band, and thence continues down the back of the 

 metatarsus. In the proximal third of this region it is joined by the 



