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VETERINARY PHYSIOLOGY 



Fig. 92 shows the way in which the dendrites of these cells 

 form a dense plexus at the surface and the way in which in- 

 coming fibres (1) become associated with them. 



FIG. 92. Diagram of the arrangement of cells in a typical part of the cerebral 

 cortex. (After RAMON Y CAJAL.) 



This arrangement is considerably modified in certain regions 

 of the cortex, the large pyramidal cells being best developed 



FIG. 93. Diagram of collateral connections of different parts of the cerebral 

 cortex, a, b, c, pyramidal cells of the cortex, all connected by collateral 

 branches with other parts of the cortex in the same and in the opposite 

 hemisphere, a give off the pyramidal fibres to the cord. (After RAMON 

 Y CAJAL. ) 



in those parts from which the great mass of fibres pass down 

 to the spinal cord, and being known as the cells of Betz. 



