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It contains one or two lymph glands, the submental lymph nodes (three or four in number) and Submental veins and commencement of anterior jugular veins. (The contents of the triangle actually lie in the superficial fascia over the roof of submental triangle)
The jugulodigastric lymph nodes are found in the proximity of where the posterior belly of the digastric muscle crosses the internal jugular vein. Nodes are typically around 15 mm in length in adults, and decrease in size during old age. [1] They tend to be some of the largest lymph nodes in the cervical chain due to their significant lymphatic ...
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)). [1] The lymph nodes may be affected by metastatic spread from cancers of their drained territories ...
The superficial cervical lymph nodes are lymph nodes that lie near the surface of the neck.. Some sources state simply that they lie along the external jugular vein, [1] while other sources state that they are only adjacent to the external jugular vein in the posterior triangle, and they are adjacent to the anterior jugular vein in the anterior triangle.
The superior deep cervical lymph nodes are the deep cervical lymph nodes that are situated adjacent to the superior portion of the internal jugular vein. They drain either to the inferior deep cervical lymph nodes or into the jugular trunk. [1] Most of these lymph nodes are situated deep to the sternocleidomastoid muscle, though some are not. [1]
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]
The deep cervical lymph nodes are subdivided into a superior group and an inferior group. [3] [4] Alternatively, they can be divided into deep anterior cervical lymph nodes and deep lateral cervical lymph nodes. [citation needed] They can also be divided into three groups: "superior deep jugular", "middle deep jugular", and "inferior deep ...
They are closely related to the inferior portion of internal jugular vein; some are also closely related to the brachial plexus, and the subclavian artery and subclavian vein [1] (those situated in the supraclavicular triangle - beyond the posterior margin of the sternocleidomastoid muscle [2]).