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Abstract
They are the frontalis muscle, muscles of the eyelid (The Corrugator supercilii muscle , the Orbicularis oculi , the Levator palpebrae superioris), muscles of the nose(the Procerus ,the Nasalis ,the depressor septi, the anterior dilatator naris) (Leopold and Cummings, 1998), and muscles of the mouth ( Quadratus labii superioris, the Caninus , the Zygomaticus, the Mentalis, the Quadratus labii inferioris, the Triangularis, the Buccinator, the Orbicularis oris and the Risorius) (Grays anatomy, 2009).