Select the INCORRECT statement .

Options

A. Efferent arteriole has wider lumen than that of afferent arteriole.
B. Efferent arteriole arises from the glomerulus.
C. Efferent arteriole division to from perutubular capillary network around PCT and DCT.
D. Renal artery enters the kidney and divides into afferent arterioles.

Answer

To solve the question of selecting the INCORRECT statement regarding the renal system, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Evaluate the First Statement:**
- **Statement:** "Efferent arteriole has wider lumen than that of afferent arteriole."
- **Analysis:** This statement is incorrect. The afferent arteriole has a wider lumen compared to the efferent arteriole. The afferent arteriole brings blood into the glomerulus, while the efferent arteriole carries blood away from it.
- **Conclusion:** This statement is the incorrect one.

2. **Evaluate the Second Statement:**
- **Statement:** "Efferent arteriole arises from the glomerulus."
- **Analysis:** This statement is true. The efferent arteriole does indeed arise from the glomerulus after the filtration process.
- **Conclusion:** This statement is correct.

3. **Evaluate the Third Statement:**
- **Statement:** "Efferent arteriole gives rise to form peritubular capillary network."
- **Analysis:** This statement is also true. The efferent arteriole branches out to form the peritubular capillary network, which surrounds the proximal and distal convoluted tubules (PCT and DCT).
- **Conclusion:** This statement is correct.

4. **Evaluate the Fourth Statement:**
- **Statement:** "Renal artery enters the kidney and divides into afferent arterioles."
- **Analysis:** This statement is true as well. The renal artery supplies blood to the kidney and divides into several afferent arterioles that lead to the glomeruli.
- **Conclusion:** This statement is correct.

### Final Conclusion:
The INCORRECT statement among the options provided is the first one: "Efferent arteriole has wider lumen than that of afferent arteriole."

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