Final answer:
Urine flows through a series of structures in the urinary system before being excreted. The renal pyramids empty into the minor calyx, which merges to form the major calyx. The renal pelvis connects the calyces to the ureters, which carry urine to the bladder.
Step-by-step explanation:
In the urinary system, urine is formed in the kidneys and then travels through a series of structures before being excreted from the body. The renal pyramids are conical structures in the renal medulla, and they empty urine into the minor calyx. Multiple minor calyces merge to form the major calyx, which then leads to the renal pelvis. The renal pelvis is the region in the kidney where the calyces join the ureters, which carry urine to the bladder. From the bladder, urine is then eliminated through the urethra.