THE BRAIN. 



397 



are found fibers from the antero-lateral column of the 

 cord ; (2) the lemniscus or fillet, a continuation of the 

 sensory decussation; (3) the fasciculus teres, just 

 dorsal to the posterior longitudinal bundle, and 

 which contain fibers of the seventh cranial nerve. 



Fibers of the 

 cranial nerves pass 

 through the medulla 

 from their nuclei in 

 the dorsal portion 

 to their various su- 

 perficial exits on the 

 ventral surface. 



The formatio re- 

 ticularis is similar 

 to that described in 

 the medulla. The 

 median raphe is also 

 a continuation of 

 that described in 

 the medulla. 



Gray Matter of the 



Fig. 274. Section through the hu- 

 man cerebellar cortex vertical to the sur- 

 face of the convolution. Treatment with 

 Muller's fluid (Bohm and Davidoff). 



Pons. The nuclei 

 pontis are nerve cells 

 that are scattered 

 among the superficial transverse fibers and are nodal 

 points forming connections between the medulla, 

 cerebellum, and higher brain centers. The superior 

 olive lies in the formatio reticularis and is seen only 

 in the lower portions of the pons. The nuclei of the 

 cranial nerves are found in the dorsal aspect, most 

 of them just beneath the floor of the fourth ventricle. 



