Brush border surface can be taken as the characteristic feature of

Options

A. PCT
B. Bowman's capsule
C. Loop of Henle
D. DCT

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the structure in the kidney that is characterized by a "brush border surface."

2. **Identifying the Structure**: The brush border surface is a distinctive feature found in the proximal convoluted tubule (PCT) of the nephron in the kidney.

3. **Defining the Brush Border**: The brush border refers to the microvilli present on the epithelial cells lining the PCT. These microvilli create a large surface area.

4. **Function of the Brush Border**: The increased surface area provided by the brush border is crucial for the reabsorption of essential nutrients and electrolytes. The PCT reabsorbs approximately 70-80% of the electrolytes and nearly all essential nutrients from the filtrate back into the blood.

5. **Conclusion**: Therefore, the brush border surface can be taken as the characteristic feature of the proximal convoluted tubule (PCT) in the kidney.

**Final Answer**: Brush border surface can be taken as the characteristic feature of the proximal convoluted tubule (PCT).

---