THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -The renal cortex is also known as the kidney cortex. The cortex surrounds the inside of the organ, which is called the medulla. The renal cortex itself is covered by the renal capsule, which is a layer of tougher protective tissue. The renal cortex is where the nephrons (blood-filtering units) begin.

Detailed explanation-2: -There are two types of nephrons-cortical nephrons (85 percent), which are deep in the renal cortex, and juxtamedullary nephrons (15 percent), which lie in the renal cortex close to the renal medulla.

Detailed explanation-3: -The renal medulla is the innermost part of the kidney. The renal medulla is split up into a number of sections, known as the renal pyramids. Blood enters into the kidney via the renal artery, which then splits up to form the segmental arteries which then branch to form interlobar arteries.