Multiple choice Which area(s) is/are anesthetized by Lingual nerve block? Anterior two thirds of the tongue The floor of the oral cavity Mucosa and mucoperiosteum on the lingual side of the mandible All of these Reveal answer Fill a bubble to check yourself D Correct answer Explanation The lingual nerve gives off branches to the interior alveolar nerve and contributes many sensory fibres to the mucous membrane of the floor of the mouth and gingival on the lingual surface of the mandible.