Claim: The Buccinator, a thin quadrilateral bone from the alveolar processes of maxilla and mandible, buccinator crest and temporomandibular joint, compresses the cheeks against the teeth and is used in acts such as blowing.
Evidence: The buccinator (/ˈbʌksɪneɪtər/) is a thin quadrilateral muscle occupying the interval between the maxilla and the mandible at the side of the face.