What is an effect of vasodilation on body temperature?

Vasodilation refers to the widening of blood vessels, particularly the small arteries and arterioles, which increases blood flow to the skin and extremities. This physiological response plays a crucial role in thermoregulation by allowing more warm blood to reach the surface of the skin. When this happens, heat from the blood can dissipate into the surrounding environment, especially in warm conditions or during physical activity.

As a result, vasodilation facilitates the process of heat loss from the body. When more blood is brought to the skin's surface, the body can effectively radiate heat away, leading to a decrease in overall body temperature. This is particularly important for maintaining homeostasis, as it helps prevent overheating during exercise or in hot environments. Thus, the correct answer highlights that vasodilation lowers body temperature by promoting heat loss.