The Zygomaticus Major is a muscle located in the face, primarily responsible for elevating the corners of the mouth. It originates from the zygomatic bone, which is part of the cheek, and extends to the corners of the mouth. This muscle plays a crucial role in facial expressions, particularly in smiling. When the Zygomaticus Major contracts, it pulls the mouth upward and outward, contributing to a joyful or happy expression. It works in conjunction with other facial muscles, such as the Risorius and Orbicularis Oris, to create a range of expressions that communicate emotions effectively.