Immunologie Fondamentale

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Questions and Answers

Quels sont les organes lymphoïdes centraux (primaires)?

La moelle osseuse et le thymus.

Quels sont les organes lymphoïdes périphériques (secondaires)?

Les ganglions, la rate, MALT (mucosal associated lymphoid tissue), GALT et BALT.

Quelles sont les fonctions des anticorps spécifiques?

Activation des B par les Ag thymo-indépendants et par les Ag thymo-dépendants, maturation de la réponse immunitaire.

Quel est l'organe responsable de la formation et de l'éducation des lymphocytes T et B?

<p>Thymus.</p> Signup and view all the answers

Qu'est-ce que la tolérance immunitaire?

<p>Il s'agit de l'établissement de la tolérance centrale et de l'engagement de la réponse immunitaire cellulaire et humorale.</p> Signup and view all the answers

Flashcards

What are the primary lymphoid organs?

The bone marrow and thymus are primary lymphoid organs where immune cells develop and mature.

What are the secondary lymphoid organs?

Lymph nodes, spleen, mucosa-associated lymphoid tissue (MALT), gut-associated lymphoid tissue (GALT), and bronchus-associated lymphoid tissue (BALT) are secondary lymphoid organs where immune responses are initiated and carried out.

What is the role of specific antibodies in immune responses?

Antibodies specifically activate B lymphocytes in response to thymus-independent (TI) antigens and thymus-dependent (TD) antigens, leading to a refined immune response.

What is the thymus responsible for?

The thymus is a primary lymphoid organ responsible for the formation and education of both T cells and B cells.

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What is immune tolerance?

Immune tolerance is the ability of the immune system to distinguish self from non-self and prevent attacks on the body's own cells. It involves central tolerance, where self-reactive cells are eliminated in the thymus, and peripheral tolerance, which regulates immune responses in secondary lymphoid organs.

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