mimic muscle

…the latter are numerous small muscles attached to the skin around the face, eyes, nose, mouth, and ears, which open and close the eyes and mouth, chew the nose, and in animals, move the ears. In higher animals, especially humans, the facial muscles also move to produce facial expressions in response to changes in emotions, so these muscles are also called mimic muscles. The blood vessels in the face are roughly divided into the facial artery on the surface and the maxillary artery on the deep layer, both of which are branches of the external carotid artery.

*Some terminology explanations that mention "mimic muscle" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…後者は顔，目，鼻，口，耳の周囲の皮膚に着いている多数の小筋で，目や口を開閉したり，鼻をもぐもぐさせたり，動物では耳を動かしたりする。高等な動物ことにヒトでは，顔面筋は感情の変化に伴っても運動して表情を起こすので，この筋群をまた〈表情筋mimic muscle〉ともいう。顔に分布する血管はおおざっぱにいうと，表層が顔面動脈，深層が顎動脈で，いずれも外頸動脈の枝である。…

※「mimic muscle」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報