All of the following structures pierce the buccinator muscle except
Parotid duct
Molar glands of the check
Buccal branch of facial nerve
Buccal branch of the mandibular nerve
Buccinator, the muscle of the cheek. Pierced by Parotid duct Buccal branch of mandibular nerve actions: Flattens cheek against gums and teeth prevents accumulation of food in the vestibule. This is the whistling muscle. Ref BDC volume 3;sixth edition pg 66
Head and neck