SPINAL CORD AS A PATH OF CONDUCTION. 



165 



Specific Designation of the Spinal Tracts. — The tracts that are 

 most satisfactorily determined for the human spinal cord are 

 indicated schematically in Fig. 75. 



They are named as follows: In the posterior funiculus, 



1. The fasciculus gracilis (column of Goll). 



2. The fasciculus cuneatus (column of Burdach). 



Fig. 75. — Schema of the tracts in tlie spinal cord (Koliiker) : n. Fasciculus gracilis ; 

 b, fasciculus cuneatus ; pc, fasciculus cerebrospinalis lateralis; pd, fasciculus cerebrospinalis 

 Knterior ; /, fasciculus cerebellospinalis ; gr, fasciculus anterolateralis superficialis. 



In the lateral funiculus, 



1. The fasciculus cerebrospinalis lateralis, known also as the 

 lateral or crossed pyramidal tract. 



2. The fasciculus cerebellospinalis, known also as Flechsig's 

 tract. 



3. The fasciculus anterolateralis superficialis, known also as 

 Gowers tract. 



4. The lateral ground bundle (fasciculus lateralis proprius), 

 made up chiefly of short association fibers. 



In the anterior funiculus, 



1. The fasciculus cerebrospinalis anterior, known also as the 

 direct or anterior pyramidal tract. 



2. The anterior ground bundle (fasciculus anterior proprius). 

 Of these tracts, the fasciculus gracilis, fasciculus cuneatus, 



fasciculus cerebellospinalis, and fasciculus anterolateralis super- 

 ficialis represent ascending or sensory paths, while the lateral 

 and anterior cerebrospinal or pyramidal fascicuh form a related 

 descending or motor path. The anterior and lateral ground 



