Variations in origin, course and distribution of lingual nerve: A cadaveric study
Journal Title: Indian Journal of Clinical Anatomy and Physiology - Year 2018, Vol 5, Issue 3
Abstract
Introduction The lingual nerve is a branch from posterior trunk of mandibular nerve and is sensory to the tongue lingual gingivae and conveys postganglionic secretomotor fibres to submandibular sublingual and anterior lingual glands The nerve is joined by the chorda tympani branch of the facial nerve and often by a branch of the inferior alveolar nerve Submandibular ganglion is connected to the lingual by anterior and posterior filaments1 Communications between Lingual nerve LN and Mylohyoid nerve MHN may be the possible explanation for the functional recovery of LN when its get injured during third molar extraction4Materials and Methods A study was carried out in twenty embalmed cadavers and forty lingual nerves were studied by standard dissection methodResults out of forty lingual nerves studied one lingual nerve was found to be arising from two roots Anterior AR posterior PR Mylohyoid nerve was found to be connected with the submandibular ganglion by two roots anterior and posterior and later was found to join the lingual nerve A CB from LN joined posterior rootDiscussion Kim et al described the communication between MHN LN in 125 of 32 heads and first mentioned that this communication could provide another route of sensory transmission being a possible cause of incomplete anaesthesia during dental practice6Conclusion Our study showed multiple variations in one specimen which included variation in its origin partly taking origin from anterior division of MN along with posterior division communication with MHN MHN was connected to submandibular ganglion by two roots The incidences of all these variations in our study were 25Keywords Lingual nerve Inferior alveolar nerve Mylohyoid nerve Submandibular ganglion
Authors and Affiliations
Premakumari C R, Dnyaneshwar
Keywords
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- EP ID EP476098
- DOI 10.18231/2394-2126.2018.0083
- Views 62
- Downloads 0
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