GENERAL HISTOLOGY

Detailed explanation-1: -Renal pyramids (or malpighian pyramids or Malpighi’s pyramids named after Marcello Malpighi, a seventeenth-century anatomist) are cone-shaped tissues of the kidney. In humans, the renal medulla is made up of 10 to 18 of these conical subdivisions.

Detailed explanation-2: -Renal pyramids are triangular with its broad base towards the cortex. Apex is pointed and is called the renal papilla. It constitutes the medulla and inner substance of the kidney.

Detailed explanation-3: -Another term for renal pyramids is malpighian pyramids. Between seven and eighteen pyramids exist in the innermost part of the kidney, which is called the renal medulla; in humans, there are usually only seven of the pyramids.

Detailed explanation-4: -The cone-shaped structures located within the renal medulla are the renal pyramids. The base of the renal pyramid is continuous with the inner limit of the cortex of the kidney. The apex of the renal pyramid, called the renal papilla, points toward the calyceal system.

Detailed explanation-5: -The medulla is divided into 8-18 conical regions, called the renal pyramids; the base of each pyramid starts at the corticomedullary border, and the apex ends in the renal papilla which merges to form the renal pelvis and then on to form the ureter.