Illinois Nail Technician Practice Exam 2025 – Complete Prep Guide

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Which of the following best describes the epidermis?

The deepest layer of skin

The outer layer of skin

The epidermis is best described as the outer layer of skin. This is accurate because the epidermis is the topmost layer that serves as the first line of defense against environmental factors such as pathogens, UV radiation, and mechanical injury. It is composed primarily of keratinized stratified squamous epithelial cells, which help in providing protection and preventing water loss.

The role of the epidermis includes not only protection but also the regulation of moisture and the production of melanin, which gives skin its color and helps protect against UV damage. Understanding this structure is essential for anyone in the field of nail technology, as skin health significantly impacts nail care and treatment practices.

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A type of muscle

A layer of connective tissue

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