Which of the following cell types is not found in the epidermis?

• A. Langerhans cells
• B. Keratinocytes
• C. Fibroblasts
• D. Melanocytes

Answer: (C)

Verified step by step guidance

1. Begin by understanding the structure of the epidermis, which is the outermost layer of the skin. It primarily consists of four types of cells: keratinocytes, melanocytes, Langerhans cells, and Merkel cells.
2. Keratinocytes are the most abundant cells in the epidermis, responsible for producing keratin, a protein that provides strength and waterproofing to the skin.
3. Melanocytes are found in the basal layer of the epidermis and are responsible for producing melanin, the pigment that gives skin its color.
4. Langerhans cells are part of the immune system and are found in the epidermis. They help protect the body by capturing and presenting antigens to T-cells.
5. Fibroblasts are not found in the epidermis; they are located in the dermis, the layer beneath the epidermis. Fibroblasts are responsible for producing collagen and other extracellular matrix components, which provide structural support to the skin.