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The Procerus is a muscle of facial expression of the nose (it could also be considered to be a muscle of facial expression of the eye). The muscles of facial expression of the nose are:
- Procerus
- Nasalis
- Depressor Septi Nasi
- Levator Labii Superioris Alaeque Nasi (also a muscle of facial expression of the mouth)
ATTACHMENTS:
- Fascia/skin above the nasal bone to fascia/skin medial to the eyebrow.
ACTIONS:
- Wrinkles upward the skin of the nose.
- Pulls downward the medial eyebrow.
NOTES:
- The name procerus literally means prince (in Latin). This muscle is so-named because contraction of this muscle creates the facial expression of superiority that a prince would make.
- Contraction of the procerus also helps to shield the eye from bright sunlight.
