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Human Body Study

Tonsils

Clusters of lymphatic tissue forming a protective ring at the back of the throat and nose.

The lymphatic and immune system A stylised body with the lymphatic organs placed at their anatomical positions, plus two concept panels for the functional arms — innate immunity (phagocytes eating pathogens) and adaptive immunity (lymphocytes and antibodies). Each label links to the article for that part. Innate immunity fast frontline: phagocytes ingest pathogens Adaptive immunity specific and remembered: lymphocytes and antibodies Tonsils Thymus Lymph nodes Spleen Lymphatic vessels Bone marrow Lymphatic organs and lymph vessels, plus the two arms of the immune response — schematic.

What they do

Section titled “What they do”
  • Sit at the entrance of the airway and digestive tract, sampling inhaled and swallowed material.
  • Expose immune cells to incoming microbes early, helping the body build defenses.

Key idea

Section titled “Key idea”

The tonsils are immune sentries posted at the body’s main entry points; their frequent infection in childhood reflects exactly that frontline role.