Question

Choose the incorrect statement below.

A. Keratinocytes produce keratin
B. Merkel cells are associated with a sensory nerve ending.
C. Melanocytes produce melanin
D. Dendrocytes produce dendrocidin.

Answer 1

The incorrect statement is D. Dendrocytes produce dendrocidin, as there are no such cells known as dendrocytes that produce dendrocidin in the human epidermis. The actual cells in the epidermis are keratinocytes, Merkel cells, melanocytes, and Langerhans cells.

Step-by-step explanation:

The incorrect statement from the choices provided is D. Dendrocytes produce dendrocidin. In the context of human skin cells, there are no cells known as dendrocytes that produce a substance called dendrocidin. Instead, the cell types found in the human epidermis are:

• Keratinocytes, which produce keratin, a protein that gives hair, nails, and skin their hardness and water-resistant properties.
• Merkel cells, which function as receptors for the sense of touch and are associated with sensory nerve endings.
• Melanocytes, which produce the pigment melanin that protects the skin from UV radiation and contributes to skin color.
• Langerhans cells, which are immune cells that help defend against pathogens entering the skin.

Therefore, D. is incorrect because it does not accurately describe a cell type or function in the epidermis of human skin.