Zusammenfassung der Ressource
Frage 1
Frage
Which of the following is incorrect?
Antworten
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T-reg is a type of CD4 effectors
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CD8 are cytotoxic B-lymphocytes
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CD5 are antigen specific B lymphocytes
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gamma beta cells are a type of antigen specific cell
Frage 2
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Nonspecific lymphatic cells are released as inactive cells. Macrophages begin as monocytes in blood and differentiate when they've invaded the tissues.
Frage 3
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The bone marrow is a primary lymphatic organ because most lymph cells originate here. The thymus, spleen, and lymph associated tissues are all secondary lymphatic organs because these are places where lymph cells meet pathogens.
Frage 4
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In the high endothelial venule, B-lymphocytes are in the paracortex. The T-lymphocytes are in the primary follicle.
Frage 5
Frage
Which of the following is false?
Antworten
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The Hassel's corpuscle pertains to the CD4 T-regulatory cells
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Upon the onset of puberty, the thymus gains adipose tissue leading to lower generation of T-cells
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B-cells are remade every few days but T cells are supposed to last for years
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The thymus and lymph nodes both have reticular cells and fibers
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MALT has m-cells involved in food tolerance
Frage 6
Frage
Which of the following is true?
Antworten
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Lingual tonsil- one crypt
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Palatine tonsil- has many folds
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Pharyngeal tonsil- has many crypts
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Lingual tonsils have dense capsule on exposed side
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Pharyngeal tonsil folds are larger than the crypts
Frage 7
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The spleen has closed circulation with the capillaries in there. T-cells are associated with PALS, B-cells with the germinal centers.
Frage 8
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The red pulp of the spleen is colored because of its rich trabecular vascularization and recycling of RBC from circulation. The white pulp has a role in fighting systemic infections.