Goosebumps ("gooseflesh"), scientifically called piloerection

The name "goose bumps" actually comes from the comparison with the skin of geese. Geese grow feathers of seals in the epidermis, which are similar to human hair follicles. After goose feathers pulled out, their places are projections.

Frequent naming this effect by comparing ants associated with certain types of small insects running around the body - ants, tiny little insects.

Reflex, leading to the appearance of "goose skin", called pilomotornogo reflex. As a result, the sensitive stimulation of peripheral nerves, originating directly from the spinal cord, autonomic occurs peripheral nerve endings are responsible for the smooth muscle of the hair follicles. Reducing, muscle follicles raises the hairs on the body of an organism - an effect of piloerection.

Source: ru.wikipedia.org

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