abstract:Marionette lines are long vertical lines that laterally circumscribe the chin.Fabio Meneghini, Clinical Facial Analysis: Elements, Principles, Techniques They are important landmarks for the general impression of the face.
With farther descent comethe "marionettelines" that run from the edges of the mouth to the jaw, so namedbecausetheyevokethediscrete, moveable chinof this sort of puppet.