Question

What does the given figure represent?

• A. Increase heat loss from the body by vasodilation
• B. Reduce heat loss from the body by vasoconstriction
• C. Reduce heat loss from the body by vasodilation
• D. Increase heat loss from the body by vasoconstriction

Answer 1

The correct option is A Increase heat loss from the body by vasodilation

When the outside temperature is high, the production of heat within the body increases causing the blood supply to the skin to be increase by the dilation of blood vessels. This is known as vasodilation.
It results in greater loss of heat by radiation, convection, etc., and also by evaporation of sweat.