THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The renal medulla is the inner region. It is comprised of smaller conical sections of tissues called renal pyramids. In humans, there are about ten to 18 renal pyramids in the renal medulla. The renal pyramid contains part of the secreting tubules and the collecting tubules.

Detailed explanation-2: -renal pyramid, any of the triangular sections of tissue that constitute the medulla, or inner substance, of the kidney.

Detailed explanation-3: -Answer and Explanation: The tissue between the renal pyramids is called the renal column. The renal column is an extension of a medullary region that contains blood vessels and connective tissues.

Detailed explanation-4: -The mature renal medulla, the inner part of the kidney, consists of the medullary collecting ducts, loops of Henle, vasa recta and the interstitium. The unique spatial arrangement of these components is essential for the regulation of urine concentration and other specialized kidney functions.