This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
All of the following structures pierce the buccinator muscle except 
Select and explain. 
A. Parotid duct, B. Molar glands of the check, C. Buccal branch of facial nerve, D. Buccal branch of the mandibular nerve
B: Molar glands of the check
Answer: B: Molar glands of the check 
Explanation: 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