What is the main purpose of the frontal sinuses?

The main purpose of the frontal sinuses is to produce mucus and lighten the skull. The frontal sinuses, located behind the forehead, play a significant role in the overall function of the respiratory system. They produce mucus that helps moisten the nasal passages, preventing dryness and facilitating the trapping of dust and pathogens, ultimately contributing to respiratory health. In addition, the presence of these sinuses contributes to the reduction of skull weight, which can improve overall balance and stability of the head. This anatomical feature is crucial as it underscores the functional aspects of the sinuses in addition to their role in drainage and maintaining a healthy mucosal lining.