Chap. XVI.] 



THE SPINAL CORD. 



from the pia mater with large vascular trunks. The 

 white matter between the anterior median and ante- 

 rior lateral fissure is the anterior column, that between 

 the anterior lateral and posterior lateral fissure is the 

 lateral column, and that between the posterior lateral 

 and posterior median fissure is the posterior column. 

 169. Beside the septa situated in the two lateral 



Fig. 83. Diagram of a Transverse Section through the Cord m the 

 region of the Cervical Swelling. 



a, Anterior longitudinal fissure ; 6, posterior longitudinal fissure : tlie part of tbe 

 white matter next to it is the fasciculus of Goll ; c, central canal; d, direct 

 pyramidal fasciculus ; e, roots of anterior or motor nerves ; /, lateral bundle 

 or posterior nerve roots; g, median bundle of same: h. the cuneate fasci- 

 culus ; i, the crossed pyramidal fasciculus or the fasciculus of Turk ; it. the 

 anterior root-zone of the lateral-column of white matter; I, the direct cere- 

 >eliar fasciculus ; m, the anterior horn of grey matter : n. the posterior horn 

 of same. 



fissures respectively, there are other smaller septa, 

 neuroglia and prolongations of the pia mater, which 



