The epidermis is the outermost layer of the integumentary system and is comprised of four types of cells. Which of the cell types is associated with fine-touch differentiation necessary for detecting shapes and texture?
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Correct Answer: E. Merkel cells.
Merkel cells are oval shaped and usually can be found in clusters under ridged epidermal areas. These are the cells responsible for fine-touch differentiation. Keratinocytes produce keratin and are the cells responsible for creating the skin barrier against infection. Fibroblasts manufacture collagen and are found in the dermal layer since collagen is one of the connective tissues. Melanin, the pigment responsible for skin color, is produced by melanocytes. The function of the Langerhans’ cell is to fight against skin infection by processing microbial antigens.
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