774 



THE NERVOUS SYSTEM 



toward the medulla oblongata and represents the line of demarcation between the 

 fasciculus gracilis and the fasciculus cuneatus. Occasionally in the upper cervical 

 region a similar line may be seen along the ventral aspect close to the anterior 



Fig. 614. — Posterior and Anterior Views of the Spinal Cord. (Modified from Quain.) 



Clava 

 Funiculus cuneatus I 



Postero-median sulcus j 



Postero-lateral sulcus 



Cervical 

 enlargement 



Postero-lateral sulcus^ 



Postero-median sulcus 



Filum 

 terminale 



Lumbar 

 enlargement 



Olivary body 

 Lateral funiculus 

 -Decussation of pyramids 



-Anterior median fissure 



Section of medulla 

 oblongata 



Antero-lateral sulcus 

 (Line of ventral nerve- 

 roots) 



Anterior median fissure 



Conus 

 medullaris 



1 



median fissure. This is the antero-intermediate sulcus, forming the lateral 

 boundary of the ventral cerebro-spinal fasciculus. 



Collectively, the entire space between the posterior median sulcus and the line 

 of attachment of the dorsal roots is occupied by the posterior funiculus; the 

 lateral space between the line of attachment of the dorsal and that of the ventral 



