Which is NOT a function of the skin?

Which is NOT a function of the skin?

• A. Produces key antibodies
• B. Relays sensory information
• C. Protects underlying tissues
• D. Aids in temperature regulation

Answer: (A)

Antibodies are produced by the immune system, not by the skin. The skin does a lot: it serves as a protective barrier to keep microbes and fluids from entering, it contains nerve endings that relay sensory information like touch and temperature to the brain, and it helps regulate body temperature through sweat and blood flow. It does have immune cells in the skin (like Langerhans cells) that help recognize invaders, but those cells don’t make antibodies themselves. So producing antibodies isn’t a function of the skin, making that option the one that doesn’t fit.

Antibodies are produced by the immune system, not by the skin. The skin does a lot: it serves as a protective barrier to keep microbes and fluids from entering, it contains nerve endings that relay sensory information like touch and temperature to the brain, and it helps regulate body temperature through sweat and blood flow. It does have immune cells in the skin (like Langerhans cells) that help recognize invaders, but those cells don’t make antibodies themselves. So producing antibodies isn’t a function of the skin, making that option the one that doesn’t fit.