Description: The zygomatic reflex is a neuromuscular mechanism involving the zygomatic muscle, located in the cheek area. This reflex is fundamental for facial expression, as it allows the elevation of the corners of the lips, contributing to the formation of smiles and other emotional expressions. Its activation typically occurs in response to emotional or social stimuli, such as laughter or joy, and is an essential component of non-verbal communication. The significance of the zygomatic reflex lies in its ability to convey emotions instantly and effectively, facilitating social interaction and empathy between individuals. Additionally, this reflex can be observed in various situations, from everyday interactions to clinical contexts, where its evaluation can provide insights into a person’s emotional and neurological state. In summary, the zygomatic reflex is not only a key aspect of facial anatomy but also plays a crucial role in the expression of emotions and interpersonal communication.