The buccinator is a thin, flat muscle located in the cheek area of the face. It plays a crucial role in facial expressions and functions, helping to keep food between the teeth while chewing. This muscle also assists in actions like blowing and sucking, making it important for activities such as playing wind instruments. Anatomically, the buccinator is situated between the maxilla and mandible, extending from the mandible to the orbicularis oris, the muscle surrounding the mouth. It is innervated by the facial nerve, which controls its movements, contributing to the overall functionality of the mouth and cheeks.