This flashcard describes lymphoid organs as organized tissues with many lymphocytes interacting with a non-lymphoid stroma. It distinguishes between primary (thymus, bone marrow) where lymphocytes are generated, and secondary (lymph nodes, spleen, MALT) where immune responses begin.
Órgãos organizados caracterizados por um número muito grande de linfócitos interagindo com um estroma não linfoide. Os órgãos centrais ou primários deste tipo, onde os linfócitos são gerados, são o timo e a medula óssea. Os principais órgãos periféricos ou secundários deste tipo, nos quais as respostas imunes adaptativas são iniciadas, são os linfonodos, o baço e os órgãos linfoides associados à mucosa, como as amígdalas e as placas de Peyer.
| Front | Organized tissues characterized by very large numbers of lymphocytes interacting with a nonlymphoid stroma. The central, or primary, organs of this kind, where lymphocytes are generated, are the thymus and bone marrow. The main peripheral, or secondary, organs of this kind, in which adaptive immune responses are initiated, are the lymph nodes, spleen, and mucosa-associated lymphoid organs such as tonsils and Peyer’s patches |
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| Back | lymphoid organs |
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