BLOOD VESSELS 



57 



'20). From this, table 23 has been formed and the values there 

 given are those used for chart 2. The unit volume used in 

 table 23 in 189m"' X 200/.. 



TABLE 23 



Showing linear measurements of blood vessels in n in different parts of the central 

 nervous system — Standard volume 189iJ? X 200ii 



Fasc. cuneatus* 



Ventral funiculus 



Lateral funiculus 



Pyramidal tract 



Fasc. long, dors 



Subst. gelat. Rolandi 



Nuc. mot. VII 



Nuc. XII 



Nuc. mot. V 



Ventral horn; cord 



Spinal V nucleus 



Deiters' nucleus 



Molecular layer; cerebellumf 



Dorsal horn; cord 



Inferior olive 



Superior olive 



Chief sens. V nucleus 



Granule layer; cerebellumf.. 



Nuc. dentatus 



Chief vestib. nucleus 



Dors, cochlear nucleus 



* All the measurements for parts in the spinal cord were made in the third 

 cervical segment. 



t The measurements were made in the posteroventral region of the vermis 

 (uvula). 



As these data show, the white substance is less vascular than 

 the gray and the efferent (motor) gray less vascular than the 

 afferent (sensory) gray. 



The vascular supply of the cerebral cortex and its several 

 layers have also been determined by Craigie ('21), at five lo- 



