Cerebellum. 



115 



Pedunc. conarii 



Brack. 

 Corp. genie, post. 



Brach. 



Jsemniscus 



Proa cereb. ad 

 quadriy. 



Eroc. cereb. adpont: 



Fovea rhomboid. 

 (-Lamina, cinerea 



Chordae acust; 



Taenia fossae 

 rhomboid* 



Cla.va 

 Mae ciiier. 

 Calamus script 



Tkgment. caudic. 



IV. N. TROCHLEARIS 

 V. N. TRI&EMINU5 



'FrenuT veli 

 medull. 



Locus caeruleus 

 Recess, later 



X. N. VAGUS 



Funic. teres 

 ^Tela choroid. infer. 



XL N. RECURRENS 



Funic. cutieat. 

 'Funic. gracil. 



SulcJlongit. 

 foster. 



450. Tlie Fourth Ventricle, view from above. Natural size. 



The two posterior Columns of the cord, which bound the posterior 

 median fissure, are continued upwards and forwards, to reach the hemi- 

 spheres of the cerebellum as restiform bodies, Corpora rcstiformia ; 

 where they enter the hemispheres, they show in section a grey nucleus, 

 the Tuberculum cinercum. The posterior median fissure, Sulcus longitudinal 

 posterior, diverges on each side to an angle, which is open in front, 

 and forms with the angle of the Processus cerebetti ad corpus quadrige- 

 minum, the boundary line of the Fovea s. Fossa rliomboidea, the floor of 

 the fourth ventricle. The grey basal surface of the Fovea rlioinboidea is 

 called Lamina cinerea foveae rhomboideae ; it is divided by a median fur- 

 row into two halves. 



Where the restiform bodies begin to diverge, two narrow white 

 cords, the Funiculi graciles are placed between them ; these broaden out 

 at the posterior angle of the Fovea rhomboidea into an expansion, the Clava. 

 That part of the restiform bodies lying just outside to the Funiculi gradles, 

 is called the Faniculus cuneatus. At both sides of the median raphe of the 

 Fovea rhomboidea are the Funiculi teretes ; these are covered posteriorly 

 by the grey Alae cinereaz. 



Heitzmann, Atlas. II. 



16 



