In cross section, is composed of three layers:
Mucosal layer (within the oral cavity)
Middle muscular layer (orbicularis oris)
Outer mucosal layer
Wet vermillion (internal oral)
Dry vermillion (external oral)
Wet vermillion (internal oral)
Dry vermillion (external oral)
The vermillion border is the cosmetic outline of the<unk>  where the facial skin meets the vermillion. Light reflects at this junction, so small misalignments may cause noticeable defects.
Lip laceration
Ears
Nailbed laceration
Auricular hematoma
Ear laceration
Nose
Tongue laceration
Nasal fracture