Section of the Right Kidney
Section through the right kidney from its outer to its inner border. Labels: 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; D, the pelvis of the kidney; U, ureter; C, a calyx.
Martin, H. Newell & Martin, Ernest G. The Human Body: An Account of Its Structure and Activities and the Conditions of its Healthy Working (New York: Henry Holt and Company, 1917) 521
Courtesy the private collection of Roy Winkelman