Merkel cells are located in which skin layer?

• A. Stratum corneum
• B. Deep dermis
• C. Dermal papillae
• D. Basal epidermis, linked to surrounding cells

Answer: (D)

Merkel cells are specialized touch receptors located in the basal layer of the epidermis, right at the epidermal-dermal junction, where they are closely linked to surrounding keratinocytes and nearby nerve endings. This deep epidermal position allows them to form the Merkel cell–neurite complex, which is essential for sensing light touch and texture. They are not in the outermost stratum corneum, nor in the deeper dermis, nor in the dermal papillae—areas where other receptors reside. Their placement in the basal epidermis explains their role in fine touch discrimination.