358 



THE BRAIN 



fellow of the opposite side and from the mid-brain, and from 

 which the membranes have been removed. 



If actual specimens cannot be obtained good casts will 

 serve the present purpose. 



Superior frontal gyrus 

 Superior frontal sulcus 



Middle frontal sulcu 



Upper part of middle, 

 frontal gy 



Inferior precentral 

 sulcus 



Superior pre- 

 central sulcus 

 Anterior 

 central gyrus 

 Lower buttre 



CENTRAL 



SULCUS ' 



Upper. 



buttress 



Posterior 

 central gyrus 

 Inferior post- 

 central sulcus 



Lateral fissure 



(posterior 



ramus) 



Interparietal 



sulcus - 

 (proprius) 

 Superior 

 tempera" 



:SU1CUS 



Superior post 

 central sulcus 



Superior parietal 

 lobule 



Sulcus frontalis paramedialis 



Superior frontal sulcus 



Interparietal sulc 

 (proprius) 



Interparietal sulcus 

 (occipital part) 

 Middle temporal sulcus 



Interparietal sulcus (occipital part) 



Parieto-occipital fissure 



FIG. 137. View of the Hemispheres from above (semi-diagrammatic). 



Transverse occipital sulcus 

 Parieto-occipital fissure 



Having obtained the specimens, he must examine them 

 from above, from below, from the lateral and the medial 

 sides ; and he should commence the inspection by examining 

 the upper aspects of the specimens. As he does that he 

 will note the difference between the blunt and rounded 



