Which thermoregulation statement is accurate?

• A. The body increases body temperature through vasodilation.
• B. The body loses heat through shivering.
• C. The body lowers body temperature through sweating.
• D. The body generates heat through evaporation.

Answer: (C)

When the body needs to cool down, sweating helps reduce temperature. Sweat glands release fluid, and as that fluid evaporates from the skin, it absorbs heat from the body (latent heat of vaporization). This heat loss lowers both skin and core temperature, helping bring the body back toward a normal set point.

Vasodilation does aid cooling by increasing blood flow to the skin to release heat, but it doesn’t imply that temperature increases—its role is to help remove heat. Shivering, on the other hand, generates heat to raise temperature when cold. Evaporation itself is a cooling process, not a way to generate heat.

Therefore, sweating lowers body temperature through evaporation.