10 Questions
What is the primary function of mucins in the gut?
To trap and remove pathogens and intestinal antigens from the GI tract
What is the approximate concentration of bacteria in the colon?
10^12/ml
What is the function of beneficial commensal gut bacteria?
All of the above
What is the purpose of Waldeyer’s Ring?
To guard the entrance to the respiratory and GI tracts
What is the characteristic of mucins that allows them to trap pathogens?
Their extended, well-hydrated configuration
What is the function of Peyer’s patches in the gut?
To function as mini-lymph nodes, identifying and responding to pathogens
What is the composition of isolated lymphoid follicles in the gut?
Primarily composed of B cells
What is the result of pathogens becoming entangled in mucins?
They are removed from the body through the GI tract
What is the purpose of the appendix in the gut?
To function as a lymphoid organ, packed with lymphoid follicles
What is the mechanism by which mucins are formed in the gut?
Through the formation of di-sulfide bonds between glycoproteins
Test your knowledge of the immune system in the gut mucosa, including the types of immune cells and how they respond to pathogens. Learn about the role of B cells, T cells, and other immune cells in protecting the gut from infection.
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