What is wrong about kidney

Options

A. Peripheral cortex and central medulla
B. Blood enters glomerulus through efferent arterioles
C. Malpighian capsules occur in cortex
D. Concave part of kidney is called hilus

Answer

To solve the question "What is wrong about the kidney?", we will analyze the options provided and identify the incorrect statement regarding kidney function and structure.

### Step-by-Step Solution:

1. **Understand the Structure of the Kidney**:
- The kidney consists of various parts, including the glomerulus, which is involved in filtering blood.

2. **Identify the Afferent and Efferent Arterioles**:
- The afferent arterioles are the blood vessels that carry blood **to** the glomerulus.
- The efferent arterioles are the blood vessels that carry blood **away** from the glomerulus.

3. **Evaluate the Options**:
- The question provides multiple options about kidney functions or structures. We need to determine which statement is incorrect.
- Based on the information, the correct function is that blood enters the glomerulus through the afferent arterioles.

4. **Identify the Incorrect Statement**:
- If an option states that blood enters the glomerulus through the efferent arterioles, this statement is incorrect. Blood does not enter through the efferent arterioles; it exits through them.

5. **Conclusion**:
- The second option (assuming it states that blood enters through the efferent arterioles) is the wrong statement about the kidney.

### Final Answer:
The incorrect statement about the kidney is that blood enters the glomerulus through the efferent arterioles.