Electrolysis Practice Exam

In terms of skin structure, what is the derma?

1. The outermost layer of skin

2. A layer containing fat cells

3. The middle layer of skin

4. The layer responsible for pigmentation

The correct answer is: The middle layer of skin

The derma, commonly referred to as the dermis, is indeed the middle layer of the skin. It lies beneath the epidermis (the outermost layer) and above the subcutaneous layer (which contains fat cells). The dermis plays a crucial role in supporting the epidermis by providing it with nutrients through a network of blood vessels and housing various structures such as hair follicles, sweat glands, and sebaceous glands. In addition to structural support, the dermis contains connective tissues that give skin its strength and elasticity, primarily made up of collagen and elastin fibers. It is also where the sensory receptors are located, which help the body to perceive touch, pain, pressure, and temperature changes. Understanding the function and significance of the dermis is essential in fields such as dermatology and cosmetic science, as any damage to this layer can lead to various skin issues and can impact overall skin health.