GENERAL HISTOLOGY

Detailed explanation-1: -Another important function of the skin is body temperature regulation. When the skin is exposed to a cold temperature, the blood vessels in the dermis constrict. This allows the blood which is warm, to bypass the skin. The skin then becomes the temperature of the cold it is exposed to.

Detailed explanation-2: -Goosebumps may help you conserve heat when you’re exposed to cold. They may do this in several ways. As with larger muscles, contraction of the muscles in the skin (called arrectores pilorum) generates heat. The raised hair follicles cause skin pores to close.

Detailed explanation-3: -A: When you’re cold, or you experience a strong emotion, such as fear, shock, anxiety, sexual arousal or even inspiration, goosebumps can suddenly pop up all over the skin. They occur when the tiny muscle located at the base of each hair follicle contracts, causing the hair to stand on end.

Detailed explanation-4: -Even though humans have evolved to have relatively little body hair, we still produce goosebumps when cold. Goosebumps occur when tiny muscles in our skin’s hair follicles, called arrector pili muscles, pull hair upright. For animals with thick fur, this response helps keep them warm.