Final answer:
The levator anguli oris muscle does not have a skeletal attachment or origin and is part of the facial expression muscles.
Explanation:
Levator anguli oris is the muscle that does not have a skeletal attachment or origin. It is part of the muscles of facial expression, specifically involved in raising the angle of the mouth.
Facial muscles, such as orbicularis oris and levator labii superioris, contribute to various facial expressions and movements.
Understanding the origin and function of these facial muscles is essential in grasping their role in conveying emotions and expressions.
Learn more about Facial Muscles here:
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