ANATOMY

Detailed explanation-1: -The zygomaticus major muscle is a muscle of the human body. It extends from each zygomatic arch (cheekbone) to the corners of the mouth. It is a muscle of facial expression which draws the angle of the mouth superiorly and posteriorly to allow one to smile.

Detailed explanation-2: -The risorius muscle’s function is to aid in facial expression by pulling the corner of the mouth laterally via its contraction in an outward and upward motion. In conjunction with other facial muscles, this helps to create a smile or a frown, and myriad other expressions in-between.

Detailed explanation-3: -Of all the muscles in the face, the zygomaticus major is perhaps the most noticeable. Sitting between the corners of our lips and the upper part of our cheeks, it controls the way in which we smile. The muscle sits atop the zygomatic bone, otherwise known as the cheekbone.

Detailed explanation-4: -Zygomaticus major is a thin paired facial muscle that extends diagonally from the zygomatic bone (hence the name) to the angle of the mouth.

Detailed explanation-5: -Known as the Smiling Muscle, the zygomaticus major is most responsible for our smile. It works in conjunction with up to 43 other facial muscles to provide a wide array of smiles. From a sly grin to a full, toothy smile that lights up the whole face, there are a million different smile configurations.