risorius (muscle)

ri·so·ri·us (mus·cle)

[TA] facial muscle of mouth; origin, from platysma and fascia of masseter; insertion, orbicularis oris and skin at corner of mouth; action, draws angle of mouth laterally, lenghthening rima oris; nerve supply, facial. Synonym(s): musculus risorius [TA], Albinus muscle (1) , Santorini muscle

ri·so·ri·us (mus·cle)

(ri-sōrē-ŭs mŭsĕl) [TA] Facial muscle of mouth; origin, from platysma and fascia of masseter; insertion, orbicularis oris and skin at corner of mouth; action, draws angle of mouth laterally, lenghthening rima oris; nerve supply, facial. [L. risor, one who laughs, fr. rideo, pp. risus, to laugh]

单词	risorius (muscle)
释义	DictionarySeerisorius risorius (muscle) ri·so·ri·us (mus·cle) [TA] facial muscle of mouth; origin, from platysma and fascia of masseter; insertion, orbicularis oris and skin at corner of mouth; action, draws angle of mouth laterally, lenghthening rima oris; nerve supply, facial. Synonym(s): musculus risorius [TA], Albinus muscle (1) , Santorini muscle ri·so·ri·us (mus·cle) (ri-sōrē-ŭs mŭsĕl) [TA] Facial muscle of mouth; origin, from platysma and fascia of masseter; insertion, orbicularis oris and skin at corner of mouth; action, draws angle of mouth laterally, lenghthening rima oris; nerve supply, facial. [L. risor, one who laughs, fr. rideo, pp. risus, to laugh]
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