What is the role of the renal pelvis in the urinary system?

The renal pelvis serves as the funnel-like structure at the center of the kidney that collects urine produced by the nephrons. After the blood is filtered and urine is formed within the kidney's functional units (the nephrons), it drains into the renal pelvis. From there, the urine flows into the ureters, which transport it to the bladder for storage before excretion. This collection function is crucial for the proper management and transportation of urine from the kidneys to the urinary system for eventual elimination from the body, highlighting the renal pelvis's essential role in urine flow and overall urinary system function.