Dilator naris muscle :-

dilator naris :-

Muscle details :-

dilator naris muscle

The Dilator naris muscle is a part of the nasalis muscle. It is divided into posterior and anterior parts. It arises from the margin of the nasal notch of the maxilla, and from the lesser alar cartilages, and is inserted into the skin near the margin of the nostril.

Origin :-

margin of the nasal notch of the maxilla, greater and lesser alar cartilages.

Insertion :-

skin near the margin of the nostril.

Nerve supply :-

baccal branch of fascial nerve .

Muscle action :-

Dilation of nostrils.

Related pathology:-

In Bell’s palsy dilator naris muscle commonly paralysis .