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MANUAL OF ELEMENTARY ZOOLOGY 



end in the pineal body between the hinder ends of the 

 hemispheres. The infundibulum is a longitudinal de- 

 pression of the floor of the thalamencephalon, to which 

 is attached the pituitary body. The latter, with the bottom 



a. c. <j. 



Fig. 331. — The brain of a rabbit, seen from above with part of the 

 right cerebral hemisphere cut away. 



a.c.q.. Anterior corpus quadrigeminum ; a.ch.f>. t anterior choroid plexus ; cd n 

 cerebellum; cer.h., cerebral hemisphere ; crt., cortex ; Jl., flocculus ; _/r./., 

 frontal lobe of cerebral hemisphere ; /.&., lateral ventricle ; lat.l.^ lateral lobe 

 of cerebellum; ?«.<?., medulla oblongata; occj., occipital lobe of cerebral 

 hemisphere; ol.b., olfactory bulb j of.th. t optic thalamus;/./-., pineal body; 

 p.cq., posterior corpus quadrigeminum ; jar.L, parietal lobe of cerebral hemi- 

 sphere ; r.3, roof of third ventricle; sp.c, spinal cord ; Sy.f. t Sylvian fissure ; 

 tp.t.i temporal lobe of cerebral hemisphere ; ver., vermis. 



of the infundibulum, is usually torn off in removing the 

 brain from the skull, leaving a longitudinal slit which leads 

 into the third ventricle or cavity of the thalamencephalon. 

 A small, rounded, median swelling immediately behind 

 the infundibulum is known as the corpus mammillare or 



