PATHOLOGY MCQ
LYMPHO RETICULAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Generates “memory” lymphocytes for long term memory
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“lymph filters”
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causes T cells to become immunocompetent
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“invite” infection which creates wide variety of immune cells
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Detailed explanation-1: -Peyer’s patches play an important role in immune surveillance of materials within your digestive system. Immune surveillance refers to the process by which your immune system recognizes and destroys potential pathogens.
Detailed explanation-2: -Naïve lymphocytes immigrate into the PP via specialized high endothelial venules. Naïve or active lymphocytes leave the PP via efferent lymphatic vessels at the serosal side of the PPs which connect the PPs to the mesenteric lymph nodes (MLN).
Detailed explanation-3: -The Peyer′s patches (PP) in the small intestine is the site for the most intense activation of B cells in the whole body1, 2, 3. The site is exposed to a myriad of food and microbial-derived antigens, causing the PPs to host a large number of germinal centers (GC) at any given time point4.