Why does your hair stand up when you're scared or suddenly get goosebumps? 😨
The answer is hidden beneath your skin.
Tiny muscles called arrector pili are attached to your hair follicles. When your autonomic nervous system activates them, these muscles contract and pull the hair follicles upward.
This ancient reflex may have helped our ancestors appear larger during threats and may also have helped with heat retention in furry ancestors.
In this Body Spectra 3D medical animation, we travel beneath the skin to reveal the tiny muscles, nerves, and hair follicles responsible for this fascinating reflex.
Discover anatomy, physiology, neuroscience, skin biology, and surprising mechanisms of the human body through cinematic 3D scientific visualization.
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Educational content only.
#GoosebumpsScience #HairBiology #SkinScience #HumanReflexes #BodySpectra
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