How Do You Spell ZYGOMATICUS MAJOR MUSCLE?

The zygomaticus major muscle is a facial muscle that belongs to the group of muscles known as the mimetic muscles. It originates from the zygomatic bone, commonly referred to as the cheekbone, and extends downwards towards the corners of the mouth. It is primarily responsible for the movement of the lips, particularly in smiling or grinning expressions.

The zygomaticus major muscle functions by pulling the corners of the mouth upwards and laterally, resulting in the elevation of the upper lip and exposing the teeth. It works in tandem with other facial muscles to create a range of facial expressions that involve lip movement, including laughing, smiling, and sneering. This muscle is crucial in the communication of emotions and is often used as an indicator of genuine or fake smiles.

The zygomaticus major muscle receives its nerve supply from the facial nerve, also known as the seventh cranial nerve. It is considered a skeletal muscle, meaning it is under voluntary control. This allows individuals to control their facial expressions consciously, but it also means that the muscle can become fatigued or strained with excessive or repetitive use.

Injuries or inflammation to the zygomaticus major muscle can result in difficulties or pain while smiling, laughing, or making other facial expressions. Physical therapy, massage, or other relaxation techniques can be employed to alleviate these symptoms and promote healing.