264 



THE HUMAN BODY. 



consist of one continuous mass, but of a number of conical 

 portions, the pyramids of Malpiffhi, %', each of which is 



FIG. 74. Section through the right kidney from its outer to its inner border. 

 1, cortex; 2, medulla; 2', pyramid of Malpighi; 2", pyramid of Ferrein: 5, small 

 branches of the renal artery entering between the pyramids; A, a branch of the 

 renal artery; C, the pelvis of the kidney; U, ureter; C, a calyx. 



separated from its neighbors by a prolongation,*, of the 



cortical substance. This, however, does not reach to the 



Describe the pyramids of Malpighi. What lies between them? 



