English Dictionary

arrector pili

名詞

(anatomy) Any of the small muscles attached to hair follicles in mammals, contraction of which causes the hairs to stand on end.

日本語の意味

毛包に付着する小さな筋肉。収縮すると毛が立ち上がる（立毛作用を引き起こす）ため、哺乳類の体毛を立ち上がらせる役割を持つ。

At the sudden noise, the arrector pili along his arms contracted, and goosebumps appeared on his skin.

突然の物音で、腕の毛包に付着する小さな筋肉が収縮して肌に鳥肌が立った。

意味（1）

(anatomy) Any of the small muscles attached to hair follicles in mammals, contraction of which causes the hairs to stand on end.

arrectores pilorum （ plural ）