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The formation of goose bumps in humans under stress is considered by some to be a vestigial reflex, [4] though visible piloerection is associated with changes in skin temperature in humans. [5] The reflex of producing goose bumps is known as piloerection or the pilomotor reflex, or, more traditionally, [6] horripilation.
Each arrector pili is composed of a bundle of smooth muscle fibres which attach to several follicles (a follicular unit). [4] Each is innervated by the sympathetic division of the autonomic nervous system. [4]
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Piloerection (goose bumps), the physical part of frisson. Frisson (UK: / ˈ f r iː s ɒ n / FREE-son, US: / f r iː ˈ s oʊ n / free-SOHN [1] [2] French:; French for "shiver"), also known as aesthetic chills or psychogenic shivers, is a psychophysiological response to rewarding stimuli (including music, films, stories, people, photos, and rituals [3]) that often induces a pleasurable or ...
Goosebumps have a practical purpose for animals. When an animals’ hair sticks up it makes it look bigger and helps protect it against predators. A raised layer of fur can also help keep an ...
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The sudden startled arm-jerking response sometimes experienced when on the verge of sleeping is known as the hypnic jerk.. The evolutionary explanation for the existence of the hypnic jerk is unclear, but a possibility is that it is a vestigial reflex humans evolved when they usually slept in trees.
The post 50 People Share The Most Bone-Chilling Medical Facts That Might Give You Goosebumps first appeared on Bored Panda. These disturbing medical facts will make you think twice about what you ...