Corrugator Supercilii

The corrugator supercilii is an orbital muscle of facial expression. It is a triangular shaped muscle located within the glabella region of the face.

• Attachments – Originates from the medial aspect of the superciliary arch and inserts onto the skin of the eyebrow.
• Actions – Draws the eyebrows together, creating vertical wrinkles on the bridge of the nose (associated with frowning).
• Innervation – Temporal branches of the facial nerve.
• Blood supply – Branches of the ophthalmic and superficial temporal artery.

By TeachMeSeries Ltd (2025)

Fig 1
The two orbital muscles of facial expression.