overlaps branching part of mandibular nerve cheek nerve of head region buccal nerve BAMS:bucn long buccal nerve SCTID:280253000 Wikipedia:Buccal_nerve FMA:53066 The buccal nerve (also called the long buccal nerve) is a nerve in the face. It is a branch of the mandibular nerve (which is itself a branch of the trigeminal nerve) and transmits sensory information from skin over the buccal membrane (in general, the cheek) and from the second and third molar teeth. buccinator branch long buccal nerve UBERON:0013646 buccinator nerve