Which of the following is NOT a function of the integumentary system?

The integumentary system, which includes the skin, hair, nails, and associated glands, has several important functions that directly relate to the health and maintenance of the body. One key function is the production of vitamin D when skin is exposed to sunlight, which is essential for calcium absorption and overall bone health.

Additionally, the integumentary system plays a role in waste elimination. Through sweat, it can help expel small amounts of waste products from the body. The protective functions of the integumentary system are also crucial; the skin acts as a barrier that shields internal organs from injury, pathogens, and harmful substances.

In contrast, the function of coordinating and controlling body activities is primarily managed by the nervous system and the endocrine system, not the integumentary system. These systems are responsible for the regulation and coordination of various body functions, ensuring that responses to stimuli are processed and executed effectively. This delineation highlights why the correct response to the question focuses on the coordination and control of body activities as not being a function of the integumentary system.