Procerus - Podcast Version 0:00 / 0:00 1x 0.25x 0.5x 0.75x 1x 1.25x 1.5x 1.75x 2x 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. By TeachMeSeries Ltd (2026) Fig 1The nasal muscles of facial expression Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Frequent questions What is the procerus muscle? The procerus muscle is a facial muscle located over the nasal bone that contributes to facial expressions. It is primarily involved in frowning by pulling the eyebrows downward. Where does the procerus muscle originate and insert? The procerus muscle originates from the nasal bone and inserts into the skin of the lower medial forehead. This positioning allows it to affect the movement of the forehead and eyebrows. What is the function of the procerus muscle? The procerus muscle functions to pull the eyebrows downward, creating transverse wrinkles across the nose, which is commonly associated with frowning. This action is crucial for conveying certain facial expressions. Which nerve innervates the procerus muscle? The procerus muscle is innervated by the buccal branches of the facial nerve. This nerve supply is essential for the muscle's ability to contract and produce facial expressions. What is the blood supply to the procerus muscle? The blood supply to the procerus muscle comes from the facial artery. This vascularisation supports the muscle's function and health by providing necessary nutrients and oxygen. Rate This Article