Part of the TeachMe Series

Procerus

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Original Author(s): Max Bidewell
Last updated: January 17, 2023
Revisions: 4

Original Author(s): Max Bidewell
Last updated: January 17, 2023
Revisions: 4

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The procerus is a nasal muscle of facial expression. It lies superficial to the nasal bone.

  • Attachments – Originates from the nasal bone and inserts onto the skin of the lower medial forehead.
  • Actions – Pulls the eyebrows downward to produce transverse wrinkles over the nose (associated with frowning)
  • Innervation – Buccal branches of the facial nerve.
  • Blood supply – Facial artery.

Fig 1 – The nasal muscles of facial expression