The procerus muscle contributes to which facial expression?

The procerus muscle contributes to which facial expression?

• A. Pulls skin between eyebrows down
• B. Expresses concentration
• C. Raises the eyebrows
• D. Frowns

Answer: (A)

The procerus acts to depress the skin between the eyebrows. When it contracts, it pulls the medial brow downward and creates wrinkles across the bridge of the nose, which is the facial cue seen in a downturned, frown-like expression. It does not raise the eyebrows — that movement comes from the frontalis — and the idea of a “concentration” expression isn’t driven by this muscle alone. So the defining action is pulling the skin between the eyebrows down.

The procerus acts to depress the skin between the eyebrows. When it contracts, it pulls the medial brow downward and creates wrinkles across the bridge of the nose, which is the facial cue seen in a downturned, frown-like expression. It does not raise the eyebrows — that movement comes from the frontalis — and the idea of a “concentration” expression isn’t driven by this muscle alone. So the defining action is pulling the skin between the eyebrows down.