When you wrinkle your eyebrows together as you concentrate on your quiz in class, the muscle that is pulling the eyebrows together and creating the vertical wrinkle around the nose is the?

Procer muscle also called pyramidal muscle of the nose, is located towards the nasal bone. It is the muscle that moves when the frown is frowned, this movement creates transverse wrinkles superior to the bridge of the nose, the hero pulls the medial margin of the lower eyebrows.

It helps create facial expression of anger and concentration.