356 LABORATORY MANUAL OF HUMAN ANATOMY 



direction of the brachium conjunctivum (cf. Spalteholz, Fig. 

 744). In these, study the following: 



(1) Dentate nucleus (nucleus dentatus). 



(a) Hilus of dentate nucleus (hilus nuclei dentati). 



(b) Capsule of nucleus dentatus (capsula nuclei dentati). 



(2) Nucleus of fastigium ("roof") (nucleus fastigii). 



(3) Nucleus fclobosus (nucleus globosus) (" spherical nucleus"). 



(4) Emboliform nucleus (nucleus emboliformis) (0. T. cork or plug). 



FIG. 168. 



Dpc.Br.Conj. 



Transverse section through mesencephalon of new-born babe. Level of colliculi superiores of 

 corpora quadrigemina. (Weigert-Pal, series ii. section No. 338.) 



Aq.cer., aquaeductus cerebri ; Dec.Br.Conj., decussatio brachii conjunctivi ; D.t., decussatio tegmenti 

 ventralis (ventrale Haubcnkreuzung of Forel) ; F.l.m,, fasciculus longitudinalis medialis ; F.Py., fasciculi 

 pyramidales in the pars basilaris pontis; L.m., lemniscus medialis; N.IV., N. trochlearis; Nu.l.s., 

 nucleus lateralis superior of Flechsig; Nu.n.IV., nucleus N. trochlearis; St.alb.p., stratum album pro- 

 fundum; St.gr.c., stratum griseum centrale ; S.n., substantia nigra. (From Barker, The Nerv. Syst., 

 New York, 1899, p. 486, Fig. 316.) 



Sections of Rhombencephalic Isthmus, Corpora Quadrigemina, and 

 Cerebral Peduncle (Sectiones isthmi, corporum quadrigemi- 

 norum, et pedunculi cerebri). 



Make two sections: (1) through the inferior colliculus at the 

 level of the nucleus of the N. trochlearis; (2) through the level 

 of the roots of the N. oculomotorius, nucleus ruber, superior 

 colliculus, and lateral geniculate body. (Cf. Spalteholz, Fig. 

 723.) 



