Decades ago, a typical childhood surgery, after repeated bouts with tonsillitis, was to have a tonsillectomy and adenoidectomy. That was before the role of the tonsils and adenoids were better understood. As it is understood today, what are the roles of the tonsils and adenoids?
a) They are lymphoid tissues that filter bacteria from tissue fluid.
b) They are lymphoid tissues that increase the efficacy of antibiotics.
c) They are lymphoid tissues that program T lymphocytes.
d) They are lymphoid tissues that eliminate cancer cells.
Answer: A
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