Lymphatic System
The lymphatic system drains the head and neck of excess interstitial fluid via lymph vessels or capillaries, equally into the right lymphatic duct and the thoracic duct.
Lymph nodes line the cervical spine and neck regions as well as along the face and jaw.
The tonsils also are lymphatic tissue and help mediate the ingestion of pathogens.
Tonsils in humans include, from superior to inferior: nasopharyngeal tonsils (also known as adenoids), palatine tonsils, and lingual tonsils.
Together this set of lymphatic tissue is called the tonsillar ring or Waldeyer's ring.
Read more about this topic: Head And Neck Anatomy
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