This image is a teaching infographic on the oral cavity. It places a large open-mouth illustration in the center and surrounds it with labeled content boxes. The boxes summarize major domains of oral anatomy and function, including functions, boundaries, lips and cheeks, vestibule, floor of the mouth, roof of the mouth, and the oropharyngeal isthmus. The design uses color-coded headings and connector lines so learners can visually relate each anatomical region to the central mouth image.