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出典:Wiktionary
Borrowed from Late Latin rīsōrius (“ridiculous, laughing”), clipping of mūsculus rīsōrius (“laughing muscle”).
risorius (複数形 risorii)
From rīsor (“laugher, mocker”) + -ius (adjectival suffix).
rīsōrius (feminine rīsōria, neuter rīsōrium); first/second-declension adjective (Late Latin)
出典:Wikipedia
出典:『Wikipedia』 (2011/01/28 19:29 UTC 版)
The risorius arises in the fascia over the parotid gland and, passing horizontally forward, superficial to the platysma, inserts onto the skin at the angle of the mouth. It is a narrow bundle of fibers, broadest at its origin, but varies much in its size and form.
Risorius