Question

Brush border is characteristic of

• A. Malpighian corpuscle
• B. Collecting tube
• C. Proximal convoluted tubule
• D. All of the above

Answer 1

The correct option is C Proximal convoluted tubule

The proximal convoluted tubule is actively involved in tubular absorption. The luminal surface of the epithelial cells of the proximal convoluted tubule of the nephron is covered with densely packed microvilli forming a border. The microvilli greatly increase the luminal surface area of the cells, presumably facilitating their resorptive function as well as putative flow sensing within the lumen.

So, the correct answer is option C.