Which part of the renal tubule is lined with cuboidal epithelial cells bordered by dense microvilli?

It is the proximal convoluted tubule. It is a portion of the kidney which leads to the loop of Henle, from the Bowman's capsule. The densely present microvilli increase the surface of the luminal area, thereby improving their absorptive potential. 

The answer would be abrasion.

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