Facial expression

A facial expression is a motion or position of the muscles of the face. Facial expressions often express, or are interpreted as expressing, emotion.

Facial expressions include:

• smile
• sneer[?]
• snarl
• etc.

The muscles of facial expression are:

• Auricularis anterior muscle[?]
• Buccinator muscle[?]
• Corrugator supercilii muscle[?]
• Depressor anguli oris muscle[?]
• Depressor labii inferioris muscle[?]
• Depressor septi nasi muscle[?]
• Frontalis muscle[?]
• Levator anguli oris muscle[?]
• Levator labii supeioris muscle[?]
• Levator labii superioris alaeque nasi muscle
• Mentalis muscle[?]
• Nasalis muscle[?]
• Orbicularis oculi muscle[?]
• Orbicularis oris muscle[?]
• Platysma muscle[?]
• Procerus muscle[?]
• Risorius muscle[?]
• Zygomaticus major muscle[?]
• Zygomaticus minor muscle[?]

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