Question

When the environmental temperature is low, vasoconstriction happens, as a result of which there is ______.

• A. heat stroke
• B. increased blood supply
• C. less loss of heat
• D. more sweat

Answer 1

The correct option is C less loss of heat

When the temperature outside is low, blood supply to the skin reduces. This happens due to vasoconstriction. As a result, there is less loss of heat from the body. Due to this reduced blood supply, secretion of sweat from the sweat glands also decreases.