360 LABORATORY MANUAL OF HUMAN ANATOMY 



The frontal section passes through the gyrus centralis anterior, island, 

 temporal gyri, corpus callosurn, cauda nuclei caudati, thalamus, middle 

 piece of nucleus lentiformis, anterior part of lenticulo-optic part of 

 capsula interna, capsula externa, and claustrum. 



The first parietal section passes through the gyrus centralis posterior, 

 island, temporal gyri, corpus callosum, cauda nuclei caudati, posterior 

 end of thalamus and of nucleus lentiformis, posterior end of lenticulo- 

 optic part of capsula interna, capsula interna, capsula externa, and 

 claustrum. 



The pediculo parietal section passes through the lobuli parietalis superior 

 et inferior, temporal gyri, corpus callosum, most posterior part of 

 thalamus, and cauda nuclei caudati. 



The occipital section passes through the cortex and white matter of the 

 lobus occipitalis. 



In addition to the horizontal sections and frontal sections 

 above mentioned, the student should study, if possible (perhaps 

 from the anatomical museum), two other sections: 



(1) Section through the brain in a plane passing parallel to the course 



of the brachia conjunctiva and through them. (Cf. Spalteholz, 

 Fig. 744.) 



(2) Section through the brain in a plane parallel to the course of the 



cerebral peduncles and through them. (Cf. Spalteholz, Fig. 745.) 



FIG. 171. 



Taenia semicircularis^ 

 Nucleus lateralis thalami. 

 Lamina medullaris medialis^ 



Nucleus medialis thalami. 



Ventriculus tertius- .. 



-Lamina medullaris lateralis 



Forel's Feld H 

 Nucleus ruber 



/*V ' '" ' J tfF$&%&*3xr N > 



; ? ; ^>^^^PN ^Nucleus hypothalamicus (corpus Luysi) 



,"***^3SX 



\ x BAThof Forel 

 N. oculomotorius Substantia nigra 



Frontal section through the human brain-stem. 



BA Th, large bundle of fibres which, coming from the nucleus ruber and its capsule, runs upward, 

 lateralward, and dorsalward to the ventral part of the thalamus to the reticular layer, to the lamina 

 medullaris lateralis, etc., where the fibres become so interwoven with others that they cannot be fol- 

 lowed farther; Ford's Feld H, dorsal white matter of regio subthalamica. (After A. Forel, Arch. f. 

 Psychiat., Berl., Bd. vii., 1877, Taf. vii., Fig. 10.) 



Drawings should be made of all these sections, and the fol- 

 lowing structures designated when met : 



Sections of Hypothalamus (Sectiones hypothalami). 



(1) Hypothalamic nucleus, or Luys's body (nucleus hypothalamicus [cor- 



pus Luysi}} (0. T. subthalamic nucleus). 



(2) Gray part of hypothalamus (pars grisea hypothalami). 



