OBJECTIVE LIFE SCIENCE
SIGNALLING IMMUNOLOGY CANCER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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immunoglobulin
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T cells
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Dendritic cells
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TLRs
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Detailed explanation-1: -A 5-year-old child falls and scratches herself and within a few days has an enlarged lymph node in the area draining the abrasion. The cells in the lymph node are reacting to the foreign stimulus that entered the skin and that was transported to the lymph node by which of the following? via high endothelial venules.
Detailed explanation-2: -As blood pressure is reduced in the feet and ankles, more fluid is pushed from the circulation out into the tissues, causing more lymph formation.
Detailed explanation-3: -Other activated T cells remain in the lymphoid organ and help B cells respond to the microbial antigens. The activated B cells secrete antibodies that circulate in the body and coat the microbes, targeting them for efficient phagocytosis.