The mandibular nerve is the largest branch of trigeminal nerve. It innervates teeth, gums, skin temporal region, ear, lower lip, part face, muscles mastication, and mucous membrane anterior 2/3 tongue. main pharyngeal arch. sensory motor fibers in originate from two roots: root, which originates semilunar ganglion, nucleus. has a mixture nerves functions. Face, cheeks temples, oral cavity, teet...