The muscles of the head are placed around the mouth, nostrils, eyelids, external ear, mandible and hyoid bones. The region of the head may therefore be divided into a number of secondary regions for the study of these muscles as
- Facial region
- Superficial muscle-cutaneous muscle
- Muscles of the lips and cheeks
- Muscles of the nostrils
- Palpebral region (muscles of the eyelids)
- Auricular region (muscles of the external ear)
- Temporo-maxillary region (mandibular muscles -masseter, pterygoid, temporal, etc,)
- Hyoid region (hyoid muscles)
- Orbital region (ocular muscle)
