Fig. 33. Vitamin A deficiency in the rnt. llcniiMtion of the cerebellum into the 

 transverse sinus via an arachnoidal villus. Penetration of the calvarium at the site 

 of an emissarv vein. 



Fig. 34. Vitamin A (Icficicru-y in the r;il . Xcrvc root levels of sixth lumbar irnii^lioii 

 and first sacral gaiifjlion. The l)Uck!(Ml ticivc loots liiivc ix'cn dislodged from the 

 intervertebral foramina and from a pitted xcitchtnl body, i-'roin a 9-\veek-<)ld rat 

 which had shown paralysis for 7 days. 



122 



