front 1 Cellular ingestion and destruction of particulate matter is called phagocytosis. | back 1 T |
front 2 The respiratory burst produced by some macrophages releases free radicals. | back 2 T |
front 3 The directional movement of cells in response to chemicals is called chemotaxis. | back 3 T |
front 4 Fever is seldom beneficial because it speeds up the cellular metabolic rate and will not allow antigen-antibody reactions to occur. | back 4 F |
front 5 Virus infected cells secrete complement to "warn" other cells of the presence of virus. | back 5 F |
front 6 The classical complement pathway involves antibodies. | back 6 T |
front 7 Substances capable of triggering the adaptive immune system and provoking an immune response are called antigens. | back 7 T |
front 8 Some immunocompetent cells will never be called to service in our lifetime. | back 8 T |
front 9 Adaptive immunity is provided only by lymphocytes that secrete antibodies. | back 9 F |
front 10 Adaptive immunity is provided only by lymphocytes that secrete antibodies. | back 10 T |
front 11 It is our genes, not antigens, that determine what specific foreign substances our immune system will be able to recognize and resist. | back 11 T |
front 12 Soluble proteins secreted by plasma cells are called antibodies. | back 12 T |
front 13 Antibodies cn act both intracellularly and extracellularly. | back 13 T |
front 14 The mechanism of the "lethal hit" of cytotoxic T cells and NK cells involves a protein called perforin. | back 14 T |
front 15 A given pathogen will provoke either a cell-mediated response or an antibody-mediated response but not both. | back 15 T |
front 16 Monoclonal antibodies can be specific for several antigenic determinants. | back 16 F |
front 17 Both T cells and B cells must accomplish double recognition: They must simultaneously recognize self and nonself to be activated. | back 17 T |
front 18 Anaphylactic shock can result from an immediate hypersensitivity where the allergen enters the blood. | back 18 T |
front 19 A transfusion reaction is a subacute hypersensitivity to foreign red blood cells. | back 19 T |
front 20 The thymus functions strictly in maturation of T cells. | back 20 T |
front 21 The lymphatic capillaries function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream. | back 21 T |
front 22 Lymphatic capillaries are permeable to proteins. | back 22 T |
front 23 Digested fats are absorbed from the intestine by the lymph capillaries. | back 23 T |
front 24 Chyle is delivered to the blood via the lymphatic system. | back 24 T |
front 25 About 3 liters of fluid are lost to the tissue spaces every 24 hours and are returned to the bloodstream as lymph. | back 25 T |
front 26 Because lymph vessels are very low-pressure conduits, movements of adjacent tissues are important in propelling lymph through the lymphatics. | back 26 T |
front 27 When tissues are inflamed, lymphatic capillaries develop openings that permit uptake of large particles such as cell debris, pathogens, and cancer cells. | back 27 T |
front 28 The cisterna chyli collects lymph from the lumbar trunks draining the upper limbs and from the intestinal trunk draining the digestive organs. | back 28 F |
front 29 Lymph capillary permeability is due to minivalves and protein filaments. | back 29 T |
front 30 Like blood, lymph flows both to and from the heart. | back 30 F |
front 31 Lymphoid tissue is mainly reticular connective tissue. | back 31 T |
front 32 Lymphocytes reside temporarily in lymphoid tissue, then move to other parts of the body. | back 32 T |
front 33 The simplest lymphoid organs are the lymph nodes. | back 33 F |
front 34 There are more efferent lymphatic vessels leaving a lymph node than there are afferent vessels entering a lymph node. | back 34 F |
front 35 Peyer's patches are clusters of lymphoid tissue found primarily in the large intestine. | back 35 F |
front 36 If even a small part of the spleen is left in a ten-year-old child, it will most likely regenerate itself. | back 36 T |
front 37 The most important role of the spleen is to provide a site for lymphocyte proliferation and immune surveillance and response. | back 37 F |
front 38 In the spleen, red pulp is involved in the immune functions and white pulp is involved in disposing of worn-out RBCs. | back 38 F |
front 39 All the lymphoid organs are well developed before birth. | back 39 F |