What will happen if
stratified squamous epithelium lines the blood vessels?

Explanation

### Step-by-Step Solution:

1. **Understanding the Structure of Blood Vessels**: Blood vessels, including arteries, veins, and capillaries, have an inner lining made up of epithelial cells. These cells are primarily simple cuboidal epithelium, which is a single layer of cube-shaped cells.

2. **Function of Simple Cuboidal Epithelium**: The main functions of the simple cuboidal epithelium lining blood vessels include absorption, transportation of substances, and minimal excretion. This structure allows for efficient exchange of gases, nutrients, and waste products between the blood and surrounding tissues.

3. **Introducing Stratified Squamous Epithelium**: If stratified squamous epithelium were to line the blood vessels instead, this type of epithelium consists of multiple layers of flat cells. This structure is typically found in areas subject to abrasion, such as the skin, rather than in blood vessels.

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