Information About

Risorius
  CATEGORIES ABOUT RISORIUS
   
muscles of the head and neck
   
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  Latin
  GraySubject 108
  Image Gray378png
  Caption Muscles of the head, face, and neck
  Origin Parotid Fascia
  Insertion Modiolus
  Blood Facial Artery
  Nerve Facial Nerve
  Action draws back angle of Mouth


The Risorius arises in the fascia over the Masseter and, passing horizontally forward, superficial to the Platysma , is inserted into 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.


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