What is another word for risorius?
Pronunciation: [ɹɪsˈɔːɹɪəs] (IPA) 
The risorius muscle is one of the facial muscles responsible for smiling. However, there are several synonyms for this muscle. The muscle is also known as the mirth muscle, the muscle of laughter, or the muscle of smiling. The term "risorius" comes from the Latin word "risus" which means laughter or smile. The muscle is located at the corner of the mouth and is responsible for drawing the lips laterally and upwards, creating a smile. Understanding the different names for this muscle can help with the study of facial anatomy and physiology. Whether you refer to it as the risorius or the muscle of laughter, it plays an important role in our expressions of joy and happiness.
