The blood vessels enter into the kidney through a longitudinal fissure called

Options

A. hilum
B. major calyx
C. minor calyx
D. None of the above

Answer

To answer the question, "The blood vessels enter into the kidney through a longitudinal fissure called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the specific term that describes the fissure through which blood vessels enter the kidney.

2. **Identifying the Options**: The options given are:
- a) Hylum
- b) Major calyx
- c) Minor calyx
- d) None of the above

3. **Recalling Kidney Anatomy**: The kidney has a specific structure where blood vessels, nerves, and ureters enter and exit. This structure is crucial for the kidney's function.

4. **Identifying the Correct Term**: The term that describes the entry point for blood vessels into the kidney is known as the "renal hylum" (or "renal hilum"). This is a longitudinal fissure located on the medial side of the kidney.

5. **Conclusion**: Based on the anatomical knowledge, the correct answer to the question is:
- **Answer**: Hylum (or renal hylum).