PATHOLOGY

Detailed explanation-1: -The metanephros remains as the permanent adult kidney. It develops from the uteric bud, an outgrowth of the mesonephric duct, and the metanephric mesoderm, derived from the caudal part of the nephrogenic ridge. Urine excreted into the amniotic cavity by the fetus forms a major component of the amniotic fluid.

Detailed explanation-2: -The central region of the kidney contains the renal pelvis, which is located in the renal sinus, and is continuous with the ureter. The renal pelvis is a large cavity that collects the urine as it is produced.

Detailed explanation-3: -The kidneys are two bean-shaped organs, each about the size of a fist. They are located just below the rib cage, one on each side of your spine. Healthy kidneys filter about a half cup of blood every minute, removing wastes and extra water to make urine.