Mylohyoid muscle
Mylohyoid muscle | |
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mandible | |
Identifiers | |
Latin | musculus mylohyoideus |
TA98 | A04.2.03.006 |
TA2 | 2165 |
FMA | 46320 |
Anatomical terms of muscle] |
The mylohyoid muscle or diaphragma oris is a paired
Structure
The mylohyoid muscle is flat and triangular, and is situated immediately
The two mylohyoid muscles arise from the mandible at the
The mylohyoid muscle separates the sublingual space from the submandibular space, which communicate via a lateral gap between the mylohyoid and hyoglossus muscles at the posterior free margin of mylohyoid muscle.[4] The submandibular gland wraps around the edges of the mylohyoid, and is divided into superficial and deep lobes above and below the muscle.[5]
Nerve supply
The mylohyoid muscle is supplied by a branch of the mandibular nerve, the inferior alveolar nerve. The mylohyoid nerve is a branch of the inferior alveolar nerve. The mylohyoid nerve emerges to give motor supply to the mylohyoid muscle.[1]
Development
The mylohyoid muscles are derived from
Variations
The mylohyoid muscle may be united to or replaced by the anterior belly of the digastric muscle; accessory slips to other hyoid muscles are frequent. This median raphé is sometimes absent; the fibers of the two muscles are then continuous.[citation needed] Variations in the mylohyoid muscle itself are not common.[6] Accessory mylohyoid muscles have been seen in some people, which have the same attachments, nerve supply, and function.[6] The mylohyoid muscle may also be split into an anterior portion and a posterior portion, with the sublingual gland occupying the space between these portions.[7]
An area of herniation of the sublingual gland, blood vessels, or fat, may be present, with studies reporting this in 10-50% of people.[4]
Function
The mylohyoid muscle elevates the
Clinical significance
The mylohyoid muscle may be imaged by
History
The mylohyoid muscle may also be known as the diaphragma oris muscle.[8][9] It is named after its two attachments near the molar teeth ("mylo" comes from the Greek word for "molar").[10]
Additional images
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Anterior view
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Medial view
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The origin of the mylohyoid muscle, inferior view.
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The insertion of the mylohyoid muscle on the hyoid bone.
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Hyoid bone. Anterior surface. Enlarged.
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Mylohyoid muscle
Notes
- ^ a b c d Drake, Vogl & Tibbitts 2005, p. 987.
- ^ Herring & Fehrenbach 2013, p. 212.
- ^ Drake, Vogl & Tibbitts 2005, pp. 987–8.
- ^ PMID 20410390.
- ^ Drake, Vogl & Tibbitts 2005, p. 997.
- ^ S2CID 6393913.
- PMID 17104127.
- ^ "Diaphragma oris - definition - Encyclo". www.encyclo.co.uk. Retrieved 2021-02-15.
- ^ Team, Almaany. "Translation and Meaning of diaphragma oris musculus mylohyoideus In Arabic, English Arabic Dictionary of terms Page 1". www.almaany.com. Retrieved 2021-02-15.
- ^ http://www.anatomy.usyd.edu.au/glossary/glossary.cgi?page=m[full citation needed][permanent dead link]
References
- Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W.M. Mitchell (2005). Gray's anatomy for students. Philadelphia: Elsevier/Churchill Livingstone. ISBN 978-0-443-06612-2.
- Herring, Margaret J.; Fehrenbach, Susan W. (2013). Illustrated anatomy of the head and neck (4th ed.). St. Louis, MO: Elsevier/Saunders. ISBN 978-1-4377-2419-6.
- This article incorporates text in the public domain from page 393 of the 20th edition of Gray's Anatomy (1918)
External links
- "Anatomy diagram: 25420.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2015-02-26.