356 



DISSECTION OF THE EABBIT 



Fis. 62. — Lepus cunicnlus. — The brain from the ventral surface. The 

 greater part of the left temporal lobe has been sliced off horizontally. 

 The planes of the three semicircular canals of the left side are in^- 

 cated by the thick lines surrounding the floccular lobe of the cere- 

 bellum ; X 2. (a. m. m.) 



CC, eras cerebri. CG, corpus geniculatum. D, descendiag cornu of left 

 lateral yeutrlcle. H, hippocampus major. XjF, floccular lobe of cerebellum. 

 Xilj, lateral lobe of cerebellum. pC, optic cMasma. OT, optic tract. P, 

 pituitary body. PV, pons Varolii. S A, anterior vertical semicircular canal. 

 SHj horizontal semicircular canal. SP, posterior vertical semicircular canal. 

 T, temporal lobe of cerebral hemisphere. 



I, olfactory lobe, with roots of olfactory nerves. II, optic nerve. Ill, 

 third nerve or motor oculi. IV", fourth nerve. V, trigeminal nerve. VI, 

 sixth nerve or abducens. VII, facial nerve. VIII, auditory nerve. IX, 

 glosso-pharyngeal nerve. X, pneumogastric nerve. XI, spinal accessory nerve. 

 XII, hypoglossal nerve. 



