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Variant innervation of the mylohyoid muscle by the lingual nerve
Affiliations- Department of Biology, University of St. Francis, Joliet, IL, United States
- Department of Restorative Dentistry, University of Washington School of Dentistry, Seattle, WA, United States
- Department of Structural and Cellular Biology, Tulane University School of Medicine, New Orleans, LA, United States
- Department of Neurosurgery, Tulane Centre for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, United States
- Department of Neurology, Tulane Centre for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA, United States
- Department of Anatomical Sciences, St. George’s University, St. George’s, Grenada, West Indies
- Department of Surgery, Tulane University School of Medicine, New Orleans, LA, United States
- Department of Neurosurgery and Ochsner Neuroscience Institute, Ochsner Health System, New Orleans, LA, United States
- University of Queensland, Brisbane, Australia
- Dental and Oral Medical Centre, Kurume University School of Medicine, Kurume, Fukuoka, Japan
- Division of Gross and Clinical Anatomy, Department of Anatomy, Kurume University School of Medicine, Kurume, Fukuoka, Japan
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Abstract
The nerve to mylohyoid muscle supplies the mylohyoid and the anterior belly of the digastric muscles, with terminal sensory branches that might innervate the submental skin and mandibular teeth. The nerve to mylohyoid muscle typically originates from the posterior surface of the inferior alveolar nerve right before entering the mandibular foramen. In rare cases, the nerve to mylohyoid muscle arises from the lingual nerve. The variations of the nerve to mylohyoid muscle might have led to failure of an inferior alveolar nerve blockade. During the routine dissection of a cadaveric head, a rare case was identified where the nerve to mylohyoid muscle had origins from both the inferior alveolar and lingual nerves. This case is reviewed and salient literature reviewed.
Abstract
The nerve to mylohyoid muscle supplies the mylohyoid and the anterior belly of the digastric muscles, with terminal sensory branches that might innervate the submental skin and mandibular teeth. The nerve to mylohyoid muscle typically originates from the posterior surface of the inferior alveolar nerve right before entering the mandibular foramen. In rare cases, the nerve to mylohyoid muscle arises from the lingual nerve. The variations of the nerve to mylohyoid muscle might have led to failure of an inferior alveolar nerve blockade. During the routine dissection of a cadaveric head, a rare case was identified where the nerve to mylohyoid muscle had origins from both the inferior alveolar and lingual nerves. This case is reviewed and salient literature reviewed.
Keywords
nerve to mylohyoid muscle, lingual nerve, inferior alveolar nerve, cadaver, anatomy
About this articleTitle
Variant innervation of the mylohyoid muscle by the lingual nerve
Journal
Issue
Article type
Case report
Pages
1079-1081
Published online
2021-11-05
Page views
4158
Article views/downloads
717
DOI
Pubmed
Bibliographic record
Folia Morphol 2022;81(4):1079-1081.
Keywords
nerve to mylohyoid muscle
lingual nerve
inferior alveolar nerve
cadaver
anatomy
Authors
A. J Cooper
A. Sadr
L. Xu
R. S. Tubbs
J. Iwanaga
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