Also called goose skin. Hair grows at an angle to the surface of the skin, with the arrector pili muscle attached to the side where the hair and hair follicle make an obtuse angle, running diagonally toward the surface of the skin. Therefore, when the arrector pili muscle contracts, the hair stands up and a bump forms around the pore. At first glance, this state resembles the skin of a plucked bird, so it is called goosebumps, and when this happens, it is called goosebumps. This phenomenon is most common when exposed to cold, but can also be seen when someone is overcome by fear or discomfort and shudders. [Kimiko Saito] Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
鵞皮(がひ)ともいう。毛は皮膚の表面に対して斜めに生えており、毛および毛包(毛嚢(もうのう))が鈍角をなす側に立毛筋が付着し、皮膚の表面に向かって斜走している。したがって立毛筋が収縮すると毛が立って毛孔を中心に高まりが生ずる。その状態は一見、羽毛をむしり取った鳥の肌に似ているので鳥肌といい、そうなることを鳥肌立つという。この現象は寒冷にさらされたときにもっとも多く現れるが、恐怖感や不快感に襲われてぞっとしたときにもみられる。 [齋藤公子] 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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