Tags: Anatomical Structure.
Renal pyramids (or malpighian pyramids or Malpighi’s pyramids named after Marcello Malpighi a seventeenth-century anatomist) are cone-shaped tissues of the kidney. The renal medulla is made up of 27 to 30 of these conical subdivisions (usually 27 in humans). The broad base of each pyramid faces the renal cortex and its apex or papilla points internally. The pyramids appear striped because they are formed by straight parallel segments of nephrons.
