What is brush-bordered cuboidal epithelium? What is its significance?

Explanation

### Step-by-Step Solution:

1. **Definition of Brush-Bordered Cuboidal Epithelium**:
Brush-bordered cuboidal epithelium is a type of epithelial tissue characterized by a single layer of cuboidal cells. These cells are typically spherical and larger in size compared to other epithelial cells.

2. **Structure of the Cells**:
The cuboidal cells have a significant surface area due to their size. The surface of these cells that faces the lumen (the inside space of a tubular structure) is referred to as the apical surface or free surface.

...