Question

In: Biology

How does the immune system stop itself after the pathogen is cleared? How are B and...

How does the immune system stop itself after the pathogen is cleared?

How are B and T cells made?

How does the immune system allow helpful commensal bacteria to survive but not potentially pathogenic bacteria in the mucosal tissues?

How do the parts of the immune system communicate with each other?

Solutions

Expert Solution

After when the infection is cleared the regulatory T cells or T suppressor cells come into function they have the co-receptors cell that is CD8 on their surface which plays a role in T cell signaling and aiding with cytotoxic T cell antigen interactions and so they slow down the workings of the body's defense after the infectious agent has been destroyed.

B Cells and T cells are made in bone marrow but T cell remsin in its precousor stage in bone marrow than it moves to the thymus and their it gets matured.

the microbiota present in our system shapes the development of our immune system, and the composition of microbiota is shaped by the immune system in return . This mutual regulation is maintained throughout life and helps in a healthy interaction between the microbiota and the immune system. Epithelial cells , mucosal cells , as antimicrobial peptide ans immune system play a role in differentiating commensal bacteria and pathogen bacteria. The commensal bacteria provide a positive signal of development and becomes an integrated part of the system.

The parts of the immune system communicate with each other as there are many receptor cells , co receptors and cytokines . The receptor cell may have APC and MHC which came into role when a pathogen invades in they . They communicate with the B cells and T cells . B cell undergo clonal selection to encounter pathogen.


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