146 THE ANATOMY OF THE HORSE. 



column is included between the inferior median fissure and the lower half 

 of the crescent. The lateral column lies in the concavity of the crescent, 

 its limits being marked at the surface of the cord by the supero- 

 lateral fissure and the line of emergence of the inferior nerve roots. 

 The white matter of the cord is composed, besides neuroglia, of medul- 

 lated nerve fibres having for the most part a longitudinal direction. 



(For the muscles of this chapter, see the table at page 348). 



