Term
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Definition
| contitute a huge area of the body vulnerable to infections. Contains a high level of IgA. |
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Term
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Definition
| gut associated lymphoid tissue, fetal differentiation is independent from other lymphoid tissue. |
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Definition
| Underlying connective tissue |
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Term
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Definition
| Aggregates of lymphocytes and dendritic cells just under intestinal lumen. Separated from lumen by enterocytes and microfold. |
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Term
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Definition
| Located at the back of the mouth and guarding entrance to the gut and the airways. They are large aggregates of secondary lymphoid tissue, covered in squamous epithelium, and forma ring known as Waldeyer's ring. |
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Definition
| secrete digestive enzymes and mucus |
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Definition
| Take up intact pathogens adn antigen particles. Transfer to the Peyer's patches. |
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Definition
| Present in large intestine and appendix. Consists mostly of B cells. |
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Term
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Definition
| Fingerlike processes that specialize in the uptake and further breakdown of already degraded food coming from the stomach. |
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Term
| Intraepithelial lymphocyte |
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Definition
| A distinctive type of CD8 T cell that is integrated into the epithelial layer of the small intestine. |
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Term
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Definition
| express integrins that bind to vascular addressins and are guided by a chemokine. |
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Term
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Definition
| expressed by gut-homing lymphocytes |
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Term
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Definition
| Bind to integrins in the gut-homing lymphocyte process |
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Term
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Definition
| guide the gut-homing lymphocyte process by a chemokine. |
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Term
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Definition
| Secreted in mucosal tissue. Non-inflammatory antibody that does not bind complement and has many IgA antibodies to commensal orgnanisms. |
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Term
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Definition
| Long hinge, some bacteria make proteases that specifically cleave the longer hinge. |
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Term
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Definition
| Short hinge and protected by a carbohydrate. |
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Term
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Definition
| Most people do not have ill effects, IgM can substitute for IgA. |
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Term
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Definition
| TH2 response is better than TH1 because IgE helps mast cells and eosinophils to bind to the parasite. |
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Term
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Definition
| antibodies bind and neutralize the pathogen before it has a chance to infect and spread. |
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Term
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Definition
| memory T and B cells provide a much faster and potent immune response in a second exposure or infection. |
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Term
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Definition
| First virus strain limits future response to other strains. |
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