Question

Cuboidal epithelium with brush border of microvilli is found in:

• A. lining of intestine
• B. ducts of salivary glands
• C. proximal convoluted tubule of nephron
• D. eustachian tube

Answer 1

The Correct Option is C

The question asks about the location of a specific type of epithelial tissue: cuboidal epithelium with a brush border of microvilli. Let's go through the options and identify the correct answer.

1. Lining of intestine: The lining of the intestine is primarily composed of columnar epithelium with microvilli, not cuboidal epithelium. It is specialized for absorption and has a brush border to increase surface area. Thus, this option is incorrect.
2. Ducts of salivary glands: The ducts of salivary glands are typically lined with simple cuboidal to stratified cuboidal epithelium, but they generally do not have a brush border. Thus, this is not the correct option.
3. Proximal convoluted tubule of nephron: This part of the nephron is lined with cuboidal epithelium that possesses a brush border of microvilli. The microvilli increase surface area for reabsorption. Therefore, this is the correct option.
4. Eustachian tube: The Eustachian tube is lined by ciliated columnar epithelium, not cuboidal epithelium with a brush border. Hence, this option is incorrect.

Based on the above analysis, the correct answer is that the cuboidal epithelium with a brush border of microvilli is found in the proximal convoluted tubule of nephron.