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Lymph Nodes of Head
Lymphoid System

Lymph Nodes of Head

Nodi lymphoidei capitis

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Description

Interstitial fluid, plasma proteins, and cellular waste exist within tissues and require removal in order to maintain tissue homeostasis. These products are removed from the tissue as lymphatic fluid. Lymphatic fluid from the head and neck is drained from the tissue through a network of vessels and intervening nodes.

This network can be divided by location and further categorized into superficial and deep structures.

There are seven groups of nodes in the head, including the: occipital, mastoid, parotid, submandibular, submental, facial, and lingual lymph nodes. The neck contains the anterior cervical, lateral cervical, and retropharyngeal lymph nodes. Most of these groups are further divided into superficial and deep structures.

Lymphatic fluid from each side of the head drains into the lateral cervical nodes, with the exception of the occipital and mastoid nodes, which drain into the accessory chain, and the submental nodes, which drain ipsi- and contra-laterally.

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Lymph Node

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Lymph nodes (LN) are secondary lymphoid organs distributed throughout the body located alongside the lymphatic vasculature that drains peripheral tissues and organs of the body to deliver molecules, antigens, microorganisms, and cells such as lymphocytes and antigen-presenting cells (APCs) from the tissues [151].

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