Final answer:
The peritubular venule, interlobar vein, and renal vein contribute to the renal blood supply in the kidney.
Step-by-step explanation:
The peritubular venule, interlobar vein, and renal vein are all part of the renal blood supply in the kidney. They play a crucial role in carrying blood away from the nephrons and back to the heart for oxygenation. The peritubular venule surrounds the renal tubules, allowing for the exchange of substances between the blood and the tubules. The interlobar vein collects blood from the interlobar arteries and transports it back to the renal vein.