What is the zygomatic muscle associated with?

The zygomatic muscle, often referred to as the zygomaticus major and minor, plays a crucial role in facial expressions, specifically in the movement associated with smiling and the prominence of the cheek. When the zygomatic muscle contracts, it pulls the corners of the mouth upward and outward, contributing to the expression of joy or happiness, which is why it is directly associated with smiling.

Additionally, the positioning of this muscle allows it to enhance the contour of the cheeks, making them more prominent during various facial expressions. This function is vital in non-verbal communication, as facial expressions convey emotions and reactions, making the zygomatic muscle essential in both aesthetic and communicative aspects of the face.

Other options focus on different muscle functions: jaw movement is primarily linked to the masseter and other muscles of mastication; eyelid movement is controlled by the orbicularis oculi; and expressions of surprise involve other facial muscles like the frontalis.