ANATOMY

Detailed explanation-1: -The collecting ducts of the nephrons terminate into the medullary pyramids. The medullary pyramids finally drain into calyces. These calyces finally coalesce into a funnel shaped cavity which is known as renal pelvis.

Detailed explanation-2: -In turn, the major calyces join to form the funnel-shaped renal pelvis. * The renal pelvis collects urine from the calyces and transports it to the ureter.

Detailed explanation-3: -In humans, the renal pelvis is divided into two or three spaces-the major calyces-which in turn divide into further minor calyces. The walls of the calyces, pelvis and ureters are lined with smooth muscle that can contract to force urine towards the bladder by peristalisis.

Detailed explanation-4: -The renal pelvis is the point where the two or three major calyces join together. The renal pelvis is a funnel-shaped reservoir that collects the urine and passes it to the ureter for excretion.

Detailed explanation-5: -The major calyx surrounds the apex of the the malpighian pyramids. Urine formed in the kidney passes through a papilla at the apex into a minor calyx then into major calyx before passing through the renal pelvis into the ureter.