Mylohyoid muscle
Citation, DOI, disclosures and article data
Citation:
Knipe H, Fahrenhorst-Jones T, Carpenter G, et al. Mylohyoid muscle. Reference article, Radiopaedia.org (Accessed on 05 Dec 2024) https://doi.org/10.53347/rID-46108
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rID:
46108
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Disclosures:
At the time the article was created Henry Knipe had no recorded disclosures.
View Henry Knipe's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Travis Fahrenhorst-Jones had no recorded disclosures.
View Travis Fahrenhorst-Jones's current disclosures
Revisions:
15 times, by
12 contributors -
see full revision history and disclosures
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Synonyms:
- Mylohyoideus
The mylohyoid muscles form a paired muscular sling that forms part of the floor of the mouth. It also separates the sublingual space (and oral cavity) from the submandibular space.
On this page:
Summary
- origin: mylohyoid line/ridge on the internal surface of the mandible
- insertion: anterior and middle fibers insert into a midline raphe that extends from the mandibular symphysis to the body of the hyoid bone, the posterior fibers extend directly to the body of the hyoid bone
Arterial supply
- sublingual branch of the lingual artery
- mylohyoid branch of the inferior alveolar artery
- submental branch of the facial artery
Innervation
- mylohyoid nerve, a branch of the inferior alveolar nerve 2
Action
- elevates the floor of the mouth (e.g. in swallowing or protruding the tongue)
Variant anatomy
- mylohyoid boutonniere: defect in the midportion of the mylohyoid muscle through which sublingual glands, blood vessels, fat, etc. can herniate 1,4
Quiz questions
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References
- 1. Otonari-Yamamoto M, Nakajima K, Tsuji Y et-al. Imaging of the mylohyoid muscle: separation of submandibular and sublingual spaces. AJR Am J Roentgenol. 2010;194 (5): W431-8. doi:10.2214/AJR.09.3516 - Pubmed citation
- 2. RHW. Head and Neck Imaging, An Issue of Radiologic Clinics of North America. Elsevier Health Sciences. (2014) ISBN:0323342027. Read it at Google Books - Find it at Amazon
- 3. La'porte SJ, Juttla JK, Lingam RK. Imaging the floor of the mouth and the sublingual space. Radiographics. 2011;31 (5): 1215-30. doi:10.1148/rg.315105062 - Pubmed citation
- 4. Law CP, Chandra RV, Hoang JK et-al. Imaging the oral cavity: key concepts for the radiologist. Br J Radiol. 2011;84 (1006): 944-57. Br J Radiol (full text) - doi:10.1259/bjr/70520972 - Free text at pubmed - Pubmed citation
- 5. Susan Standring. Gray's anatomy: the anatomical basis of clinical practice E-Book. (2021) ISBN: 9780702077074 - Google Books
Incoming Links
Articles:
- Mandible
- Submental triangle
- Dental abscess
- Muscles of mastication
- Hypoglossal nerve
- Mandibular torus
- Motor nucleus of the trigeminal nerve
- Geniohyoid muscle
- Submandibular gland
- Submental artery
- Mylohyoid boutonniere
- Maxillary artery
- Oral cavity
- Branchial apparatus
- Sublingual space
- Lingual nerve
- Submandibular space
- Inferior alveolar nerve
- Ranula
- Extrinsic muscles of the larynx
Cases:
Multiple choice questions:
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