Micro BRCC Miller Test 3 Questions with Correct Solutions graded A+

Micro BRCC Miller Test 3 Questions with Correct Solutions graded A+ _____ and _____ have some effect on incidence of infection; in temperate regions respiratory infections are higher during the winter bc more people are inside making contact - Answer climate and weather. ______ and ________ are not phagocytic but play a key role in adaptive immunity. They occur in lymphoid tissues of the lymphatic system and also circulate in blood - Answer T cells and B cells. ______ and ________ provide both a suitable growth environment for some bacteria and a method of airborne transmission, these must be scrupulously clean and disinfected - Answer respirators and humidifiers. ______ are found in the blood and spleen, lymph nodes, and red bone marrow. Have ability to kill wide variety of infected cells and tumor cells. They attack any body cells that have abnormal plasma membrane proteins. - Answer natural killer cells. ______ immune system can differentiate between self and nonself cells as to not attack the host's cells - Answer adaptive. ______ immunity fights invaders outside of the cell, its efforts tend to focus on bacteria and their toxins, as well as viruses before they penetrate the target cells - Answer humoral. _______ are not phagocytic until they leave circulating blood, enter body tissue and mature into macrophages //precursor to macrophage - Answer monocyte. _______ cells secrete antibodies into circulation - Answer plasma. _______ factors include barriers to entry and processes that remove microbes from the body's surface - Answer physical. _______ harbors such pathogens as fungi which cause mycoses such as ringworm and systemic infections; clostridium botulinum - Answer soil. _______ is produced by the growth of the mold asperigillus flavoris. When ingested, the toxin might be altered in a human body to a mutagenic compound - Answer aflatoxin. ________ and changes in _________ may increase the distribution and survival of reservoirs and vectors, resulting in the introduction and dissemination of disease such as malaria and hantavirus pulmonary syndrome - Answer global warming, weather