Section through the right kidney from its outer to 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; C, the pelvis of the kidney; U, ureter; C, a calyx.

Kidney Section

Section through the right kidney from its outer to inner border. Labels: 1, cortex; 2, medulla; 2',…