Nerve to mylohyoid branched from the lingual nerve: previously undescribed case

The lingual nerve is a branch of the mandibular division of the trigeminal nerve. It descends medial and anterior to the inferior alveolar nerve through the pterygomandibular space, runs by the lingual plate and lingual crest at the lower third molar closely, and supplies sensory fibers to the anter...

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Bibliographic Details
Published in:Anatomical science international 2019-06, Vol.94 (3), p.266-268
Main Authors: Iwanaga, Joe, Kikuta, Shogo, Oskouian, Rod J., Tubbs, R. Shane
Format: Article
Language:English
Subjects:
Anatomy
Animal Anatomy
Animal Physiology
Case Report
Cell Biology
Histology
Human Physiology
Lingual nerve
Mandible
Medicine
Medicine & Public Health
Morphology
Neurosciences
Paralysis
Sensory neurons
Teeth
Tongue
Tooth extractions
Trigeminal nerve
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Summary:The lingual nerve is a branch of the mandibular division of the trigeminal nerve. It descends medial and anterior to the inferior alveolar nerve through the pterygomandibular space, runs by the lingual plate and lingual crest at the lower third molar closely, and supplies sensory fibers to the anterior two-thirds of the tongue. Therefore, injury of this nerve is occasionally induced by wisdom tooth extraction and could lead to paralysis of the tongue. The inferior alveolar nerve gives rise to the nerve to mylohyoid just before entering the mandibular foramen, which supplies the mylohyoid and anterior belly of the digastric muscle. We present an extremely rare anatomical variation where the nerve to mylohyoid arose from the lingual nerve near the submandibular duct during routine oral dissection.
ISSN:1447-6959
1447-073X
DOI:10.1007/s12565-019-00476-4