Risorius Muscle
by ![Tim Taylor]()
Written by
Tim Taylor
Anatomy & Physiology Senior Writer
Tim Taylor is a senior writer at Innerbody Research focusing on human anatomy and physiology. Tim earned both his Bachelor of Science degree in Biology and his Master's degree in Teaching from the University of Pittsburgh.
Last updated: Mar 29th, 2025
Click to View Larger Image
The risorius muscle draws the angle of the mouth outward and is commonly called the laughing muscle.
Copyright © Innerbody Research 1997 - 2025. All Rights Reserved.
Innerbody Research does not provide medical advice, diagnosis, or treatment. You must consult your own medical professional.
