MEDICAL PHYSIOLOGY

Detailed explanation-1: -Thermoregulation is a process that allows your body to maintain its core internal temperature.

Detailed explanation-2: -Normally, the vessels that supply blood to the skin constrict or narrow in response to cold temperatures. This reaction, called “vasoconstriction, ‘’ decreases blood flow to the skin, which helps to minimize heat loss from the warm blood and therefore preserve a normal internal or “core” temperature.

Detailed explanation-3: -Vasodilation refers to the widening of the arteries and large blood vessels. It is a natural process that occurs in response to low oxygen levels or increases in body temperature. It increases blood flow and oxygen delivery to areas of the body that require it most.

Detailed explanation-4: -In summary, the reflex control of skin blood flow in humans includes sympathetic neurogenic vasodilation during body heating and noradrenergic vasoconstriction during body cooling.