Anatom3DNasalis muscle
Musculus nasalis · Nosní sval
Muscles
Looks like
A thin muscle over the nose with a band across the bridge and a small part on each nostril wing.
What it does
The cross part squeezes the nostrils; the wing part flares them, for example when breathing hard.
Keeping it well
Powered by the facial nerve. Flaring nostrils in a small child with fast breathing is a sign of breathing trouble that needs a doctor.