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21 Νοε 2023 · The specific location and attachments of the facial muscles enable them to produce movements of the face, such as smiling, grinning and frowning. Thus, these muscles are commonly called muscles of facial expression, or mimetic muscles.
A frown that merely lowers the corners of the mouth with a slight downward pouting of the lower lip uses only three muscle pairs, which means six muscles to frown. And if that frown is further reduced to a robotic expression, it uses only two muscle pairs, or four muscles.
2 Οκτ 2020 · With the help of plastic surgeon David H. Song, Adams identified 12 principal muscles required for a Duchenne smile (a smile that also causes crinkling of the skin around the eyes—a sign of genuine joy) and only 11 for a frown.
17 Σεπ 2012 · The muscles of expression located around the mouth are the depressor anguli oris, the risorius, the zygomaticus major, the zygomaticus minor, and the levator labii superioris (see above image, highlighted in blue).
17 Φεβ 2023 · The zygomaticus minor muscle is located near the corner of our eyes and helps to lift them slightly when we smile. Other facial muscles may create different smiles, such as wide-eyed or closed-eye smiles. When we frown, the frontalis muscle is usually used.
They are a group of muscles that attach to skin and by contracting, the muscles pull on the skin and create movements of the face, such as smiling, grinning and frowning. Therefore, these muscles are commonly called muscles of facial expression, or mimetic muscles.
