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The myloglossus in a human cadaver study: common or uncommon anatomical structure?
B Buffoli, M Ferrari, F Belotti
1Section of Anatomy and Physiopathology, Department of Clinical and Experimental Sciences, University of Brescia, Brescia, Italy. luigi.rodella@unibs.it.
Folia Morphologica
|September 27, 2016
Summary
The myloglossus muscle, an extrinsic tongue muscle, is not a rare variant. This anatomical study found it present in over 60% of cadavers, with varied forms and connections.
Area of Science:
- Anatomy
- Human Anatomy
- Surgical Anatomy
Background:
- The myloglossus muscle (MGM) is an extrinsic tongue muscle.
- MGM is often considered a rare anatomical variant.
Purpose of the Study:
- To clarify the anatomy of the myloglossus muscle (MGM) and its ligamentous counterpart.
- To evaluate the presence, appearance, and anatomical details of MGM in human cadavers.
Main Methods:
- Dissection of 21 anatomical regions, including the masticator and sublingual spaces.
- Evaluation of MGM presence, appearance, insertions, vascularization, and innervation.
Main Results:
- Myloglossus muscle was observed in 61.9% of dissections, presenting muscular, ligamentous, or mixed forms.
- Vascularization primarily originated from the facial artery (84.62%).
- Innervation involved the trigeminal system, with a hypoglossal component in 46.15% of cases.
Conclusions:
- The myloglossus muscle should not be regarded as a rare anatomical variant.
- Understanding MGM anatomy is crucial for fields like head and neck surgery and dentistry.
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