DISSECTION OF THE HEAD AND NECK 371 



Horizontal section through the right cerebral hemisphere cut at a distance of 61 mm. below its 

 superior border ; natural size. 



AM, claustrum; C, cuneus; CA, hippocampus (comu ammonis) ; Cc(g), genu corporis callosi ; Ce, 

 capsula externa ; Cg, gyrus dentatus ; Cia, pars frontalis capsulae internae ; Ci(g), genu capsulae internae ; 

 Cing, horizontal bundle of the cingulum ; Cing(p), posterior bundle of the cingulum ; dp, pars occipi- 

 talis capsulae internae ; Ctrl, retrolenticular portion of internal capsule ; cm, sulcus cinguli ; CO, centrum 

 semiovale ; cop, commissura posterior cerebri ; Csc, gyrus subcallosus ; do, cornu posterius ventriculi 

 lateralis ; FI, gyrus frontalis superior ; F z , gyrus frontalis medius ; F s , gyrus frontalis inferior ; / 1? sulcus 

 rontalis superior ; / 2) sulcus frontalis inferior; F 3 (c), pars triangularis gyri frontalis inferioris ; Fli, 

 fasciculus longitudinalis inferior; FM, fasciculus retroflexus Meynerti ; Fm', fasciculus inferior or 

 minor of the fornix ; Gh, nucleus habenulae ; Gp, corpus pineale ; la, insula (pars anterior) ; Jp, insula 

 (pars posterior) ; K, fissura calcarina ; K\.po, union of the flssura calcarina with the fissura parieto- 

 occipitalis; LI, gyrus cinguli; L(i), isthmus gyri fornicati ; Ic, lamina cornea and fibres of the taenia 

 semicircularis ; Lg, gyrus lingualis ; Ime, lamina medullaris lateralis nuclei lentiformis ; Imi, lamina 

 medullaris medialis nuclei lentiformis ; Ims, lamina medullaris superficialis ; mFi, facies medialis gyri 

 frontalis superioris ; NC, caput nuclei caudati ; NC', cauda nuclei caudati ; Ne, nucleus lateralis 

 thalami ; NL^, NL, globus pallidus (of nucleus lentiformis) ; NL%, putamen (of nucleus lentiformis) ; 

 0\, 02, gyri occipitales ; oa, sulcus occipitalis anterior of Wernicke ; OF, fasciculus occipito-frontalis ; 

 oi, sulcus interoccipitalis ; Op,F 3 , pars opercularis gyrus frontalis inferioris ; OpR, Rolandic operculum ; 

 Pa Th, pedunculus anterior thalami ; po, fissura parieto-occipitalis ; Pul, pulvinar ; ircl, cuneo-limbic 

 fold; irplp, posterior parieto-limbic fold; RTh, radiatio occipito-thalamica [Gratioleti] ; S(p), ramus 

 posterior fissurae cerebri lateralis Sylvii; S(v), ramus ascendens; sec, sinus corporis callosi; Sgc, sub- 

 stantia grisea centralis; Sge, subependymal gray matter; H, gyrus temporalis superior; 7J>, gyrus 

 temporalis medius ; ti, sulcus temporalis superior ; Tap, tapetum ; tec, taenia tecta ; Tga, anterior pillar 

 of the fornix; TgV, ventriculus lateralis; Th, thalamus; Tp, gyrus temporalis transversus; tp, sulcus 

 temporalis transversus ; V^, ventriculus tertius ; V, stripe of Vicq d'Azyr ; VA, fasciculus thalamo- 

 mammillaris Vicq d'Azyri; TJ, cornu anterius ventriculi lateralis; Vsl, cavum septi pellucidi ; Zr t 

 zona reticularis. (After J. Dejerine, Anatomie des Centres Nerveux, Paris, 1895, p. 408, Fig. 226.) 



