Buccinator

Muscle Origin

From the alveolar processes of the maxillary bone and mandible, temporomandibular joint

The buccinator is a thin quadrilateral muscle, occupying the interval between the maxilla and the mandible at the side of the face. It forms the anterior part of the cheek or the lateral wall of the oral cavity. Wiki

Insertion

In the fibers of the orbicularis oris.

A considerable number of the orbicularis oris fibers that are proper to the lips are derived from the buccinator and form the deeper stratum of the orbicularis. Wiki
Alveolar processes of mandible and maxilla to skin around mouth

The buccinator compresses the cheeks against the teeth and is used in acts such as blowing. It is an assistant muscle of mastication (chewing) and in neonates it is used to suckle.

Action

The buccinator compresses the cheeks against the teeth and is used in acts such as blowing. It is an assistant muscle of mastication (chewing) and in neonates it is used to suckle.

Innervation – Nerve control

Buccal branch of the facial nerve (VII cranial nerve).

The superficial branches run beneath the skin and above the superficial muscles of the face, which they supply: some are distributed to the Procerus, joining at the medial angle of the orbit with the infratrochlear and nasociliary branches of the ophthalmic. The deep branches pass beneath the Zygomaticus and the Quadratus labii superioris, supplying them and forming an infraorbital plexus with the infraorbital branch of the maxillary nerve. These branches also supply the small muscles of the nose. The lower deep branches supply the Buccinator and Orbicularis oris, and join with filaments of the buccinator branch of the mandibular nerve. Wiki

Artery

Buccal artery.

The buccal artery (buccinator artery) is a small artery in the head. It branches off the second part of the maxillary artery and supplies the cheek and buccinator muscle. It runs obliquely forward, between the pterygoideus internus and the insertion of the temporalis, to the outer surface of the buccinator, to which it is distributed, anastomosing with branches of the facial artery and with the infraorbital. From the infraorbital area, it descends bilaterally in the superficial face along the lateral margin of the nose, then running anti-parallel to the facial artery across the lateral oral region. Wiki

Antagonist muscles

 

Pictures of muscles

 

Trigger Point Referrals

 

Stretching description

 

Exercises

 

Injuries

 

Treatment

 

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