Muscle detail :-
Procerus. The procerus muscle is the pyramid-shaped muscle extending from the lower part of the nasal bone to the middle area in the forehead between the eyebrows, where it is attached to the frontalis muscle. Its location allows it to pull the skin between the eyebrows down.
Procerus arises from fascia over nose between lateral surface of nasal bone and nasal cartilage.
Procerus gets inserted into the skin over lower part of the forehead between the eyebrows. Some of it also merges with Frontalis Muscle.
Nerve supply :-
Procerus is supplied by temporal and lower zygomatic branches from the facial nerve.
Muscle action :-
The procerus helps to pull that part of the skin between the eyebrows downwards, which assists in flaring the nostrils. It can also contribute to an expression of anger.
Related pathology :-
In Bell’s palsy procerus muscle commonly paralysis .