Facial structures refer to the bones and tissues that form the human face. The main bones include the maxilla, mandible, and zygomatic bones, which provide shape and support. These structures also house important features such as the eyes, nose, and mouth, playing a crucial role in functions like eating, speaking, and expressing emotions. In addition to bones, facial structures include muscles and skin. The facial muscles enable a wide range of expressions, from smiling to frowning. The skin covers these underlying structures, protecting them and contributing to an individual's appearance. Together, these elements create the unique characteristics of each person's face.