Ureter, blood vessels and nerves enter in to the kidney through `:-`

Options

A. Pelvis
B. Hilum
C. Convex surface
D. Pyramid

Answer

To solve the question regarding where the ureter, blood vessels, and nerves enter the kidney, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Kidney**:
- The kidney is a bean-shaped organ with a distinct structure. It consists of an outer layer called the cortex and an inner layer known as the medulla.

2. **Identify Key Features**:
- The renal pelvis is a funnel-shaped structure at the center of the kidney. It collects urine from the kidney and channels it into the ureter.
- The hilum is a notch-like structure located on the concave surface of the kidney. It serves as the entry and exit point for various structures.

3. **Determine the Function of the Hilum**:
- The hilum is specifically where the ureter, blood vessels (renal artery and vein), and nerves enter and exit the kidney. This is a critical point of connection for the kidney's functions.

4. **Eliminate Incorrect Options**:
- The renal pelvis is not the entry point; it is the area where urine collects.
- The convex surface of the kidney does not serve as an entry point for these structures.
- The medullary pyramids are structures within the kidney and do not serve as entry points for the ureter, blood vessels, or nerves.

5. **Conclusion**:
- Based on the above analysis, the correct answer is that the ureter, blood vessels, and nerves enter the kidney through the **hilum**.

### Final Answer:
The correct answer is **hilum**.

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