5 Questions
Which muscle is responsible for the wrinkles at the outer corners of the eyes when smiling?
The obicularis ocull
What is the term used to describe a smile that involves both the mouth and the eyes?
The genuine smile
Which muscle moves the mouth upwards when smiling?
The zygomaticus.major
Which type of smile can show negative emotions when accompanied by other facial muscle contractions?
The mouth smile
What do the muscles around the eyes show when a smile is sincere?
Wrinkles at the outer corners of the eyes
Test your knowledge about the muscles involved in smiling and their functions with this quiz. Learn about the obicularis ocull and zygomaticus major muscles and how they contribute to the expression of a genuine smile.
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