Final answer:
The term for the tip of a pyramid in the kidney is Renal Papilla, which are part of the medulla and are points where urine is transported into the minor calyces for excretion.
Step-by-step explanation:
The term used for the tip of a pyramid in the kidney is Renal Papilla. The renal papillae are the medullary area of the renal pyramids where collecting ducts empty urine into the minor calyces. The kidneys are structured with an outer region called the renal cortex, and an inner region known as the medulla, which contains the renal pyramids. The renal papillae are the points of the pyramids that transport urine to the calyces for excretion. The kidneys contain approximately one million nephrons, which facilitate the filtering of blood to produce urine. These nephrons are predominantly found in the renal cortex, giving it a granular appearance. The renal pelvis, into which the papillae release urine, drains into the ureter leading to the bladder.