| 释义 |
risorius
risorius (rɪˈzɔːrɪəs) na facial muscle responsible for smiling
risorius
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 musclerisorius (rī-sŏ′rē-ŭs) [L., laughing] The muscular fibrous band arising over the masseter muscle and inserted into the tissues at the corner of the mouth. |