What is the function of the renal pelvis in the human excretory system?
To filter waste from the blood
To store urine temporarily
To transport urine from the kidneys to the bladder
To collect urine from the nephrons and direct it to the ureters
The primary purpose of the renal pelvis, a funnel-shaped organ in the centre of the kidney, is to collect urine that has been produced by the nephrons. The tiny kidney structure known as a nephron filters waste and extra water from the blood. The nephrons also create urine, which is then transported through a network of tiny tubes known as collecting ducts and excreted into the renal pelvis. The ureters, which are muscular tubes that carry urine from the kidneys to the bladder for momentary storage before eventual elimination from the body, are then directed to receive the urine by the renal pelvis.