Anatom3DPlatysma
Platysma · Podkožní sval krční
Muscles
Looks like
A broad, very thin sheet of muscle just under the skin of the front of the neck.
What it does
Tenses the neck skin and pulls the corners of the mouth down.
Keeping it well
Loosens with age, giving neck bands; it is the landmark for neck surgery and an injury deep to it needs a surgeon.