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.