Platysma muscle is a broad sheet arising from the fascia covering the upper parts of the pectoralis major and deltoid; its fibers cross the clavicle, and proceed obliquely upward and medially along the side of the neck. When in action it produces a slight wrinkling of the surface of the skin of the neck in an oblique direction. Its anterior portion, the thickest part of the muscle, depresses the lower jaw; it also serves to draw down the lower lip and angle of the mouth in the expression of melancholy, i.e. grimacing. This Platysma Muscle Medical PowerPoint Theme or template is primarily colored Blue, Light. The download includes a Title slide that's visually coordinated with the remaining slides.