American Academy of Professional Coders (AAPC) Practice Exam

Which component of the nail bed is responsible for producing melanin?

1. Blood vessels

2. Nerves

3. Melanocytes

4. Keratinocytes

The correct answer is: Melanocytes

The component of the nail bed responsible for producing melanin is melanocytes. These specialized cells are located in the epidermis and are responsible for the production of melanin, the pigment that gives color to the skin, hair, and nails. In the context of the nail bed, melanocytes contribute to the pigmentation of the nails, which can vary based on several factors, including genetics and sun exposure. Melanocytes are crucial for providing a protective function as well; by producing melanin, they help shield the underlying tissues from ultraviolet (UV) radiation. This function underscores the importance of these cells not only in aesthetic aspects of the nails but also in their role in protecting the body from potential harm due to UV exposure.