Submental lymph nodes | |
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1: Submental lymph nodes 2: Submandibular lymph nodes 3: Supraclavicular lymph nodes 4: Retropharyngeal lymph nodes 5: Buccinator lymph node 6: Superficial cervical lymph nodes 7: Jugular lymph nodes 8: Parotid lymph nodes 9: Retroauricular lymph nodes and occipital lymph nodes | |
Superficial lymph glands and lymphatic vessels of head and neck. (Buccinator glands labeled at center right.) | |
Details | |
System | Lymphatic system |
Identifiers | |
Latin | nodi lymphoidei submentales |
Anatomical terminology[edit on Wikidata] |
The submental lymph nodes (or suprahyoid lymph nodes) are 2-3 lymph nodes situated in the submental triangle, between the anterior bellies of the digastric muscle and the hyoid bone.
Anatomy
The submental lymph nodes are situated in the submental fascial space. They are situated close to the midline. They are immediately superficial to the mylohyoid muscle.
Afferents
They drain the lower lip, floor of the mouth, apex of the tongue, chin, and inferior/mandibular incisor teeth and their associated periodontium and gingiva.
Efferents
They drain either to submandibular lymph nodes (which then drain to deep cervical lymph nodes), or to the deep cervical lymph nodes directly.
Clinical significance
The most common cause of enlargement of the submental lymph nodes are infections (including viral infections (mononucleosis, Epstein-Barr virus infection, and cytomegaloviral infections), toxoplasmosis, and dental infections (e.g. periodontitis)).
The lymph nodes may be affected by metastatic spread from cancers of their drained territories.
See also
References
- ^ Fehrenbach, Margaret J.; Herring, Susan W. (2017). Illustrated Anatomy of the Head and Neck (5th ed.). St. Louis: Elsevier. p. 250. ISBN 978-0-323-39634-9.
- Smeele, Ludi E. (2017-01-01), Brennan, Peter A.; Schliephake, Henning; Ghali, G. E.; Cascarini, Luke (eds.), "25 - Neck Dissection", Maxillofacial Surgery (Third Edition), Churchill Livingstone, pp. 398–404, doi:10.1016/b978-0-7020-6056-4.00026-5, ISBN 978-0-7020-6056-4, retrieved 2020-11-14
External links
- lesson5 at The Anatomy Lesson by Wesley Norman (Georgetown University) (livingnecklateral)
- Image at umich.edu - must rollover
- Lymphatic drainage and fascial planes in the neck
- Diagram at Baylor College of Medicine
- Non-Hodgkin's Lymphoma | Symptoms and Types
- Neck, Cervical Metastases, Detection: Overview, Anatomy of the Cervical Lymphatics, Classification of Cervical Node Groups
Anatomy of the lymphatic system | |||||||||||||||||
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Head and neck |
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Arm and axilla |
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Chest |
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Abdomen |
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Leg |
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