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The procerus (Latin: musculus procerus, musculus pyramidalis nasi) is a triangular-shaped muscle of facial expression located in the glabellar area between the dorsum of the nose and the forehead. It is classified as the nasal facial muscle.

OriginMidline of nasal bone, upper part of lateral nasal cartilage
Insertion Skin of lower aspect of forehead, fibers of frontal belly of occipitofrontalis muscle
ActionDepresses medial eyebrow angle, produces transverse fold across glabella
Innervation Buccal branch of facial nerve (CN VII)
Blood supplyAngular and lateral nasal branches of facial artery



The procerus muscle originates from the midline of the nasal bone and the upper part of the lateral nasal cartilage.

Procerus muscle, Procerus, Nasal muscles, Facial muscles, Muscles of facial expression, Head muscles
Procerus by



The procerus inserts into the skin of the lower part of the forehead between the eyebrows. It also blends with the fibers of the frontal belly of the occipitofrontalis muscle.

Origin and insertion of procerus, Procerus muscle
Origin and insertion of procerus by



The procerus muscle depresses the medial eyebrow angle. Contractions of this muscle are also responsible for producing a transverse fold across the glabella.

Action of glabellar region muscles, Function of glabellar region muscles, Action of procerus, Function of procerus
Action of glabellar region muscles by



The nerve supply to the procerus muscle is provided by the buccal branch of the facial nerve (CN VII).


Blood supply

The procerus is supplied mainly by the angular and lateral nasal branches of the facial artery.