Risorius

risorius

(Science: anatomy, muscle) 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: musculus risorius, albinus' muscle, santorini's muscle.

Origin: L. Risor, a laughter, fr. Rideo, pp. Risus, to laugh

Retrieved from "http://www.biology-online.org/bodict/index.php?title=Risorius&oldid=58664"
First | Previous (Risorial) | Next (Risperidone) | Last
Please contribute to this project, if you have more information about this term feel free to edit this page.