Waldeyer's lymphatic ring

  • Waldeyer’s lymphatic ring is a collection of lymphoid tissue present in the neck (Waldeyer’s outer ring) and pharynx (Waldeyer’s inner ring /  Waldeyer’s tonsillar ring)
  • It plays an important role in protection against pathogens
  • It was named after the nineteenth century German anatomist Heinrich Wilhelm Gottfried von Waldeyer-Hartz.

Waldeyer’s inner ring

  • It is located in the nasopharynx and oropharynx
  • The components are:
    • Adenoids (nasopharyngeal tonsil)
    • Tubal tonsil
    • Palatine tonsil
    • Lingual tonsil
  • It helps protect the body against inhaled and ingested pathogens

Waldeyer’s outer ring

  • It is composed of various lymph nodes in the neck – mostly cervical lymph nodes
  • The component lymph nodes are:
    • Occipital
    • Post auricular
    • Pre auricular
    • Parotid
    • Facial (superficial – upper, middle, lower; deep)
    • Submandibular
    • Submental
    • Superficial cervical
    • Anterior cervical
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MALT – Acronym

MALT stands for: Mucosa Associated Lymphoid Tissue

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