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  2. Goose bumps - Wikipedia

    en.wikipedia.org/wiki/Goose_bumps

    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 .

  3. Why Do We Get Goosebumps? - AOL

    www.aol.com/why-goosebumps-211600084.html

    They got their name because they look like the skin of a plucked bird. Goosebumps have a practical purpose for animals. When an animals’ hair sticks up it makes it look bigger and helps protect ...

  4. Keratosis pilaris - Wikipedia

    en.wikipedia.org/wiki/Keratosis_pilaris

    Keratosis pilaris (KP; also follicular keratosis, lichen pilaris, or colloquially chicken skin. [1]) is a common, autosomal-dominant, genetic condition of the skin's hair follicles characterized by the appearance of possibly itchy, small, gooseflesh-like bumps, with varying degrees of reddening or inflammation. [2]

  5. Arrector pili muscle - Wikipedia

    en.wikipedia.org/wiki/Arrector_pili_muscle

    Skin conditions such as leprosy can damage arrector pili muscles, preventing their contraction. [9] Inducing contraction of the arrector pili muscles via an α1-adrenergic receptor agonist has been shown to reduce hair shedding as a result of traction alopecia [ 10 ]

  6. Got Bumps on Your Scalp? Here's How to Treat It - AOL

    www.aol.com/got-bumps-scalp-heres-treat...

    Scalp folliculitis is a skin condition that occurs when the hair follicles on the scalp become inflamed. This results in pustules, whiteheads, or other pimple-like bumps on the scalp that can be ...

  7. 11 common bug bites — and photos to help you identify them

    www.aol.com/news/11-common-bug-bites-photos...

    Fire ants also sting humans, Frye says, which can cause small pus-filled bumps on the skin, according to the Cleveland Clinic. Other symptoms: Ant bites are typically painful and itchy.

  8. Body hair - Wikipedia

    en.wikipedia.org/wiki/Body_hair

    When goose bumps are observed, small muscles (arrector pili muscle) contract to raise the hairs either to provide insulation, by reducing cooling of the skin by air convection, or in response to central nervous stimulus, similar to the feeling of "hairs standing up on the back of your neck". This phenomenon also occurs when static charge is ...

  9. Cold chill - Wikipedia

    en.wikipedia.org/wiki/Cold_chill

    Goose bumps. A cold chill (also known as chills, the chills or simply thrills) is described by David Huron [clarification needed] as, "a pleasant tingling feeling, associated with the flexing of hair follicles resulting in goose bumps (technically called piloerection), accompanied by a cold sensation, and sometimes producing a shudder or shiver."