<p>Parts of the Blood Handout Name ______Page numbers are in ( ).</p><p>Where are the two kinds of lymphocytes (B and T cells) made and where do they mature? (824)</p><p>Both are made in the bone marrow, but the B cells mature there while the T cells mature in the thymus.</p><p>Name three parts of the first line of defense in the immune system and then give an overall description of the goals of the first line of defense. (840-841)</p><p>1. skin</p><p>2 mucus keep invaders from entering the body</p><p>3 hairs</p><p>Differentiate between the nonspecific and specific defense mechanisms. (841)</p><p>Nonspecific is attacking any antigens it comes across while the specific defense mechanisms like the use of antibodies are targeting a specific antigen.</p><p>What is the goal of the following terms in the immune system? You may have to use the other reading and/or the glossary to accurately determine the roles of each of these.</p><p>MHC complex (847) class I and class II: Marks our cells as self so they are not attacked Complement system (844): proteins in the plasma that destroy any pathogens they cross Interferons (844): chemical released by virus infected cells to stop other multiplication of viruses. Histamine (843): released by basophils to trigger the inflammation response Interleukins (849): send messages to the help t cells and cytotoxic t cells to go to work Helper T-cells (848): alerts both the humoral and cell mediated defense mechanisms Plasma cells (848): makes the antibodies Cytotoxic T-cells/Killer T-cells (848): kill pathogens in the cell-mediated response Macrophage (848): general attack and phagocytosis of antigens Memory T-cell (848): t cells that are made to prepare in case of second exposure to pathogen Antigen presenting cell (848): cell that takes in antigens and then presents them on its surface to To be recognized by helper t-cells</p><p>Study Figure 43.10 that illustrates the humoral and cell-mediated immune responses. </p>