[TA] a sensory branch of the mandibular division of the trigeminal nerve; it passes downward, emerging from beneath the ramus of the mandible to run forward on the buccinator muscle, piercing (but not supplying) it to supply the buccal mucous membrane and skin of the cheek near the angle of the mouth. SYN: nervus buccalis [TA], buccinator nerve, long buccal nerve.
