Learn about the Face in this educational video from dizzo95.
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There are more than 30 muscles that are attached to the bones of the skull and inserted into the facial skin. These are the muscles which give our faces their mobility moving under the skin to create the repertoire of expressions we use to match our conversations or mood. Even when a face appears expressionless, the muscles still maintain tone giving tension to the skin. When we smile the zygomaticus and risorious muscles pull the mouth up and back. And orbicularis oculi muscles contract to narrow the eyes. Frown lines and narrowed eyes which characterize an expression of concern are caused by contraction of the corrugators and orbicularis muscles.