Question

'Brush border' is a characteristic of:

• A. Proximal convoluted tubule
• B. Neck of nephron
• C. Collecting tube
• D. All of the above.

Answer 1

Answer: (A)

A brush border is the microvilli-covered surface of the simple cuboidal epithelium and simple columnar epithelium cells found in certain locations of the body.

In the kidneys, brush border is useful in distinguishing the proximal tubule (which possesses the brush border) from the distal tubule (which does not).

So, the answer is A.