Why is squamous epithelium called pavement epithelium ?

Explanation

### Step-by-Step Solution:

1. **Definition of Squamous Epithelium**: Squamous epithelium is a type of epithelial tissue that is composed of flat, thin cells. These cells are arranged in layers, which can vary in thickness.

2. **Shape of Cells**: The cells in squamous epithelium are described as being discoidal, meaning they are somewhat circular or oval in shape but can also be slightly distorted. This shape contributes to their flat appearance.

3. **Comparison to Pavement**: The term "pavement" refers to the way these flat cells are arranged. When viewed from above, they resemble tiles or slabs laid out on a floor, similar to how pavement is constructed.

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