The buccinator muscle originates from the alveolar processes, the thickened parts of the mandible (lower jaw) and maxilla (upper jaw) that form the sockets for the teeth, as well as from the pterygo-mandibular raphe, the thick layer of connective tissue in the cheek..Click to see full answer. In this manner, what is the origin and insertion of the orbicularis oris? Orbicularis Oris Origin & Insertion Specifically, this muscle originates from the mid-line of the mandible and maxilla. From the mandible and maxilla, the orbicularis oris muscle then travels forwards and inserts right into the tissues of the upper and lower lips.Additionally, what is the action of the Buccinator muscle? Its purpose is to pull back the angle of the mouth and to flatten the cheek area, which aids in holding the cheek to the teeth during chewing. By keeping the food in the correct position when chewing, the buccinator assists the muscles of mastication. It aids whistling and smiling, and in neonates it is used to suckle. Consequently, where does the Buccinator muscle attach? The buccinator inserts into the angle of the mouth radiating into the fibers of the orbicularis oris muscle.What muscles are superficial to the Buccinator?Fibres originating from the ligament and raphe decussate at the modiolus whereas those originating from bone pass directly into the nearest lip without crossing. Superficial to buccinator is the buccal fat pad. Deep to the muscle is the mucous membrane of the cheek.

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