A 40- year-old patient after stress reaction has accidental involution of tymus and decreasing number of lymphocytes in peripheral blood. Afte their maturation in the thymus and release into the circulation, T- lymphocytes migrate preferentially to which of the following sites? O Paracortex of lymph nodes Red pulp of the spleen Cortical lymphoid nodules of lymph nodes Hilus of lymph nodes Medullary cords of Ivmph nodes

Briefly present the process of development of T lymphocytes.

New Skin' research center uses mice for studies of skin grafting. To prevent rejection of the graft, the mice are thymectomized (taking out thymus) at birth. Even though B cells do not develop in the thymus, these mice show no humoral immune response and are very susceptible to infection. Explain why the removal of the thymus would improve the success of skin grafts but adversely affect humoral immunity.

Chemotaxis is the attraction of neutrophils to a region of inflammation, which is mediated by chenical signals in the inflammatory process. False False False False False False Fal

Which isoform of thymic stromal lymphopoeitin (TSLP) induces inflammatory effects? long form O neither O both short form