PATHOLOGY

Detailed explanation-1: -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. But it doesn’t do so for people.

Detailed explanation-2: -As you may have noticed, goosebumps tend to form when you’re cold. They also form when you experience a strong emotional feeling, such as extreme fear, sadness, joy, and sexual arousal. Goosebumps may also occur during times of physical exertion, even for small activities, like when you’re having a bowel movement.

Detailed explanation-3: -Goose bumps are created when tiny muscles at the base of each hair, known as arrector pili muscles, contract and pull the hair straight up. The reflex is started by the sympathetic nervous system, which is responsible for many fight-or-flight responses.