682 



THE CEREBRUM 



the^ lesion also involves the posterior Rolandic region. Hence, an 

 injury, involving the entire centro-parietal field, must always be ac- 

 companied by a loss of cutaneous sensation. 



Monakow does not give a definite boundary for this sensory region, 

 but merely states that it embraces the posterior central gyrus and the 





^'^^fi^L AZ^:d^ 



Fig. 344. — Human Brain Showing Outer (A) and Mesial {B) Surfaces, and the 

 Situation op the Chief Motor and Sensory Areas. 

 The different shading represents the extent of each of these areas as determined by a 

 study of the histological structure of the cortex. (Campbell.) 



anterior realm of the superior to inferior convolutions of the parietal 



lobe. Flechsig's view^ coincides with this localization. He especially 



emphasizes the fact that the sensory points are centralized in the con- 



^ Sachs. Gesellsch. der Wissenschaften, Leipzig, 1904. 



