What Controls Your Lower Lip—and Why It Matters for Facelifts, Neck Lifts, and Synkinesis Surgery?
Posted onThe lower lip is controlled by four key muscles—depressor labii inferioris (DLI), depressor anguli oris (DAO), mentalis, and platysma—working together under the direction of the facial nerve. These muscles and their nerve supply play a critical role in helping you smile, speak, eat, and communicate emotion in ways so automatic you never think about them... …
Read More