platysma muscle pain

What is Platysma Muscle? The platysma is a thin sheet-like muscle that is situated superficially within the anterior aspect of the neck. It begins in the upper thoracic & shoulder regions from a fascia that covers the pectoralis major & deltoid muscles. Its fibers ascend upper medially over the anterolateral aspect of the neck, to join to the mandible & the skin & subcutaneous tissue of the lower face. Unlike…