WALDEYER’S LYMPHATIC RING

It is an uninterrupted circle of protective lymphoid tissue at the upper ends of the respiratory and alimentary tracts.

  • Also known as Nasal Associated Lymphoid Tissue (NALT).
  • Consists of the palatine, nasopharyngeal, lingual and tubal tonsils.
  • Produces B and T lymphocytes.
  • Involved in local defence.
  • Also produce lymphocytes to send to other lymph nodes.

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