MICROANATOMY

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.

Detailed explanation-2: -The arrector pili muscle mass are small muscle mass attached to hair follicles in mammals. Contraction of those muscular tissues causes the hairs to face on end-regarded colloquially as goosebumps.

Detailed explanation-3: -If you get too cold, your brain alerts your body that it should take steps to warm up. Goosebumps are one of those signals. They’re also an attempt to trap warm air next to your skin and let you hold on to your body heat.