414 ANATOMY AND PHYSIOLOGY OF THE BRAIN. 



Fig. 214. The lower part of the encephalon. A A A A, Hemispheres of the brain; B B, 

 cerebellum; 6, oblong medulla; D, pons Varolii; a, posterior cut end of the medulla; 

 b ^, anterior pyramids; c c, restiform bodies; dd, pillars of the cerebrum; e, pituitary 

 body , /, corpus albicans ; g g, mastoid lobes ; h h, anterior perforated spaces ; 1 1, ex- 

 terna, roots of the olfactory bulbs ; 1 1, olfactory bulbs ; 2 2, optic nerves ; 2', optic 

 commissure; 2" 2", optic tracts; 3 to 12, corresponding cranial nerves; 12', spinal 

 root* of the spinal accessary. 



