Final answer:
The basin-like upper end of the ureter located inside the kidney is the renal pelvis, which collects and channels urine into the ureter.
Step-by-step explanation:
The basin-like upper end of the ureter located inside the kidney is known as the renal pelvis. This part of the kidney is where urine collects before it is passed down the ureter to the bladder. It acts as a funnel that channels the urine coming from the kidney's filtering units, the nephrons, into the ureter. The renal pelvis is an integral part of the urinary system and plays a crucial role in the transport of urine.