The muscles of facial expression are located in the subcutaneous tissue, originating from bone or fascia, and inserting onto the skin. By contracting, the muscles pull on the skin and exert their effects. They are the only group of muscles that insert into skin.4.4/5.
Aug 29, 2013 · The facial muscles are a group of about 20 flat skeletal muscles lying under the facial skin in the head.Most of them originate from the skull or fibrous structures and radiate to the skin through an elastic tendon.. Contrary to the other skeletal muscles they Eyelid: Orbicularis oculi, depressor supercilii, corrugator supercilii muscles.
Structure. The facial muscles are just under the skin (subcutaneous) muscles that control facial expression.They generally originate from the surface of the skull bone (rarely the fascia), and insert on the skin of the face. When they contract, the skin moves. These muscles also cause wrinkles at right angles to the muscles’ action line.MeSH: D005152.