ABSTRACT
TIP: Many reconstructive techniques of the lip rely on the separation of aesthetic subunits.2
Fig. 39-1 External anatomy of the lips.
Fig. 39-2 Aesthetic subunits of the face and lips.
n Muscles of facial expression3,4 (Fig. 39-3) (Table 39-1) • Reconstructive techniques may damage innervation to these muscles. • Modiolus: Attachment site lateral to the commissure for multiple muscles
Table 39-1 Origins, Insertions, and Actions of Muscles of the Lips
Fig. 39-3 Internal anatomy of the lips.
