Anatomy, Head and Neck, Lingual Nerve
The lingual nerve branches from the mandibular division of the trigeminal nerve. The lingual nerve is often in a common stem with the inferior alveolar nerve after the mandibular division enters the infratemporal fossa through foramen ovale. The lingual nerve separates from the inferior alveolar nerve and then descends anteriorly into the oral cavity. As it does so, it innervates the mucous membrane of the anterior two-thirds of the tongue, the floor of the oral cavity, and the adjacent gum (lingual gingiva).
Fagan, S., & Roy, W. (2019). Anatomy, head and neck, lingual nerve. In Statpearls [Internet]. Treasure Island, (FL): StatPearls Publishing LLC.
The original material can be found here: https://www.ncbi.nlm.nih.gov/books/NBK546652/
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