The evaporation of perspiration enables which function of the integumentary system?

• A. Protection against UV radiation
• B. Regulation of body temperature
• C. Sensation of touch
• D. Production of vitamin D

Answer: (B)

Verified step by step guidance

1. Understand the role of the integumentary system: The integumentary system includes the skin, hair, nails, and glands. Its primary functions are protection, regulation of body temperature, sensation, and production of vitamin D.
2. Focus on the process of perspiration: Perspiration, or sweating, is the release of fluid from sweat glands in the skin. This fluid evaporates from the skin's surface, which helps cool the body.
3. Relate evaporation to thermoregulation: When sweat evaporates, it removes heat from the skin, lowering the body's temperature. This is a key mechanism for regulating body temperature, especially during physical activity or in hot environments.
4. Eliminate unrelated functions: Protection against UV radiation, sensation of touch, and production of vitamin D are important functions of the integumentary system, but they are not directly related to the evaporation of perspiration.
5. Conclude the correct function: Based on the explanation, the evaporation of perspiration is directly tied to the regulation of body temperature, making it the correct answer.