Submandibular lymph nodes

Submandibular lymph nodes
Submandibular lymph nodes
	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 & occipital lymph nodes
	Superficial lymph glands and lymphatic vessels of head and neck. (Submaxillary glands labeled at center right.)
Details
System	Lymphatic system
Source	Mandibular lymph node
Identifiers
Latin	Nodi lymphoidei submandibulares
	Anatomical terminology

The submandibular lymph nodes (submaxillary glands in older texts), are some 3-6 lymph nodes situated at the inferior border of the ramus of mandible.[1]

Anatomy

They are situated just superficial to the submandibular salivary gland, and posterolateral to the anterior belly of either digastric muscle.[1]

One gland, the middle gland of Stahr, which lies on the facial artery as it turns over the mandible, is the most constant of the series; small lymph glands are sometimes found on the deep surface of the submandibular gland.

Afferents

They drain the upper lip, body of tongue, cheeks, anterior portion of the hard palate, and most teeth with their associated periodontium and gingiva (except for the mandibular incisor teeth and third molar teeth).[1]

The facial and submental lymph nodes may also drain into the submandibular glands.[1]

Efferents

They drain to the superior deep cervical lymph nodes.[1]

Clinical significance

The most common causes of enlargement of the submandibular lymph nodes are infections of the head, neck, ears, eyes, nasal sinuses, pharynx, and scalp.[1]

The lymph glands may be affected by metastatic spread of cancers of the oral cavity, anterior portion of the nasal cavity, soft tissues of the mid-face, and submandibular salivary gland.[1]

Additional images

Deep Lymph Nodes

References

This article incorporates text in the public domain from page 697 of the 20th edition of Gray's Anatomy (1918)

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.

External links

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[:023-1] 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.