Which part of the kidney serves as a passageway for nerves and vessels to enter and leave?

• A. Renal cortex
• B. Renal pelvis
• C. Renal hilum
• D. Renal medulla

Answer: (C)

Verified step by step guidance

1. Understand the anatomy of the kidney: The kidney is divided into several regions, including the renal cortex, renal medulla, renal pelvis, and renal hilum. Each part has a specific function.
2. Define the renal hilum: The renal hilum is a concave area on the medial side of the kidney where structures such as blood vessels, lymphatics, nerves, and the ureter enter and exit the kidney.
3. Compare the functions of the other options: The renal cortex is the outer layer of the kidney responsible for filtration, the renal medulla contains structures like the renal pyramids involved in urine concentration, and the renal pelvis collects urine before it moves to the ureter.
4. Identify the correct answer based on function: Since the renal hilum serves as the entry and exit point for nerves and vessels, it is the correct answer.
5. Review the anatomical significance: The renal hilum is crucial for maintaining the kidney's connection to the circulatory and nervous systems, ensuring proper kidney function.