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from the Humertts, or Arm Bone, and terminatingon the Post-Carpal Bone, which bonefonns 

 the bold angular prominence in the outline of the back of the knee. 80. Flexor Mesocynii 

 Internus, or Internal Flexor ofthe Shanh, terminating on the internal prominence of thehead 

 of the shank bone. 81 The Radius, or bone ofthe fore arm, mistaken generally forthearm of 

 the horse, which is above it, short and concealed by its fleshy muscles.82 83 Extensor Mesocynii, 

 and Extensor Pedis, extensors or straighteners of the limb after flexion, and to carry it forwards : 

 one passes to the shank ; the other to the foot. — For a more particular description of these 

 muscles, see Rees's Cyclopaedia, article Anatomy Veterinary. 



Of the Hind Extremity. — 84. The Tensorius, or Fascia lata muscle, whose tendinous 

 expansion, or aponeurosis, embraces nearly all the muscles of the limb; it is advan- 

 tageously situated for carrj'ing the limb fonvards. 85 The Vastus Anterior, which with 

 its neighbour and coiigener the Vastus Internus, 86, and the Vastus, Externus, on the 

 opposite side, are all contributing to one effect, being strongly inserted in the Patella 

 or Knee-Cap 87, which part is the real knee of the horse, but termed with us the Stiße, 

 perhaps on accotmt of the hollow pit or indent surrounding it : the shortness of the 

 thigh of the horse and its thick fleshy muscles almost conceals it from Observation it scarcely 

 extending beyond the parietes, or line of the abdomen. 88. A very broad flat fasciculated 

 muscle, [AdductoT Complatiatus) powerfully acting in conjunction with the abductors on 

 the other side of the limb in supportiug the upper part of the tibia, and in forcing the body 

 forwards upon the limb whenit is fixed on the ground; passiug through a slit or division of this 

 muscle is seen a large vein 89, usually termed with us ihe Plate Vein, perhaps from the French 

 Plat Feine; though according to Daubenton in Buffbn's Natural History,what theFreuch call the 

 Plät Feine,is situated on the inside of the fore extremity, lodged in the hollow at the back part 

 ofthe radius, or fore arm ; misapplication of names in common use are not unfrequent with illi- 

 terate shoeing smiths as may be expected, the greater sliare being Freiich, and appear to have 

 been derived fiom the Low C'ountries,or our Norman ancestors. 90 Isthe Sacra Tibialis Internus 

 Muscle, powerfully acting with its opposed muscle on the opposite side, viz. the Sacra Tibialis 

 externus, in propelliiig the body from the limb made fixed on the ground. 91 The Sacra Tibialis 

 Posticus, a coiigener in its effects with the two former. 92 The Leg Bone, or Tibia, which, with 

 the muscles disposed about it, has been sometimes with us calledthe G'umÄri/,which appears to be 

 a useful distinction fi-om the other parts of the limb, and is perhaps derived fiom theFreuch 

 Jambe and Jnmbril, otLesser Leg, and not uiiaptly applied when comparedwith thekirger upper 

 ]>avt of the limb : it is this part which is commoiily mistaken for the thigh of the horse, whose 

 bliortness aiul concealment we have noticcd before. 93 The Poplitalis Muscle, much 

 tlie same as in the human. 94 The Perforans Minor, er Auxilfary Perfurans, combining in 

 tlie horse the properties of the TibialiiPosticus,and Flexor Longiis Pollicis Pedis, of the human 

 anatomy. 95 The Gastrocnemius Muscle, forming the calf of tlie leg in the human anatouiy ; 

 its very stout tendon is inserted intothe point ofthe Os Calcis, or Hock, 96, which part though 

 placed so much above the ground is corresponding to the human heel ; and tliis tendon, in 

 allusion to the antieut tale of Achilles being dipped by the heel in the Styx, has been called 

 the Tendo Achilles 97. It has appeared to us to be the lower parts of insertion of this tendon 



G that 



