Washington Master Esthetics Practice Exam

Where do melanocytes originate?

1. Dermal layer

2. Neural crest

3. Epidermal layer

4. Mesoderm

The correct answer is: Neural crest

Melanocytes originate from the neural crest, which is a group of cells in the developing embryo that gives rise to various cell types. During embryonic development, these cells migrate from the neural crest to different parts of the body, including the skin, where they settle in the epidermal layer. Their primary function is to produce melanin, the pigment responsible for the color of the skin, hair, and eyes, as well as providing a degree of protection against ultraviolet (UV) radiation. The origin of melanocytes from the neural crest is significant because it highlights the connection between the nervous system and pigment-producing cells, which is essential for understanding various skin conditions and diseases related to pigmentation.