Buccinator Anatomy

the Buccinator Muscle

Origin:  The maxilla, the mandible, and deep to the mandible, along the pterygomandibular raphe
Insertion:  Attaches to the orbicularis oris and the fibers from the deep portion of the lips
Actions:  Compresses the cheek
Innervation:  Buccal branch of the facial nerve (cranial nerve VII)
Blood Supply: Branches from the facial artery

Primary Actions of the Buccinator Muscle

1. Compression of the cheek