TOC Dissector Quiz Index Help Head and Neck Previous Page Next Page Overview
Laboratory 23. Anatomy of the Superficial Face
Step 8. The Buccinator Muscle

Previous Image Next Image

Click for Full Screen
Click image to view full screen

Orientation Icon

Examine the buccinator muscle and the associated nerves. Identify the buccal branch of the mandibular nerve which provides cutaneous sensation to the zygomatic region and sensory innervation to the vestibule of the oral cavity, it does not innervate the buccinator muscle. The buccal branch of the facial nerve runs laterally over the masseter muscle and onto the buccinator muscle to provide it with motor innervation.

Remember that all muscles of facial expression are innervated by CN VII and all muscles of mastication are supplied by the motor division of the mandibular nerve (V3).

Links and References:
Grant's: 7.6;7.8
Netter: 18
Rohen/Yokochi: 79