BUCCINATOR
| ORIGIN External alveolar margins of maxilla and mandible by molar teeth, to maxillary tubercle and pterygoid hamulus and posterior mylohyoid line respectively, then via pterygomandibular raphe between bones |
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| INSERTION Decussates at modiolus of mouth and interdigitates with opposite side |
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| ACTION Aids mastication, tenses cheeks in blowing and whistling, aids closure of mouth |
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| NERVE Buccal branch of facial nerve (VII) |