Does the depressor anguli oris attach to the modiolus?

The depressor anguli oris does indeed attach to the modiolus, which is a fibrous structure located at the corners of the mouth. The modiolus serves as an anchor point for several muscles that control facial expression. The depressor anguli oris functions primarily to depress the angle of the mouth, which is considered a negative facial expression, such as sadness or disapproval. By attaching to the modiolus, this muscle plays a significant role in the dynamic movements of the lips and mouth, enhancing the ability to express emotions effectively.

Understanding the anatomical relationship between the depressor anguli oris and the modiolus is crucial for comprehending how facial expressions are formed and how various muscles coordinate to create diverse expressions. This attachment allows for precise movement control, showcasing the importance of these structural connections in facial anatomy.