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BIOS 255 EXAM 3 REVIEW QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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BIOS 255 EXAM 3 REVIEW QUESTIONS AND ANSWERS WITH SOLUTIONS 2024
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BIOS 255 EXAM 3 REVIEW QUESTIONSAND ANSWERS WITH SOLUTIONS 2024
primary lymphatic organs - ANSWER red bone marrow and thymus
secondary lymphatic organs - ANSWER lymph nodes, tonsils, and spleen
Lymph draining from the small intestine has a milky appearance because of - ANSWER lipid contents
Lymph can also contain - ANSWER macrophages, hormones, bacteria, viruses, cellular debris, and cancer
cells
interferons main function - ANSWER Infected cell release interferons and they bind to interferon
receptor on HEALTHY cell and infected cells will die
complement system - ANSWER A group of about 30 blood proteins that may amplify the inflammatory
response, enhance phagocytosis, or directly lyse extracellular pathogens.
Inflammation signs - ANSWER redness, heat, swelling, pain
Antigens - ANSWER foreign substances that trigger the attack of antibodies in the immune response.
epitopes - ANSWER certain regions of an antigen molecule that stimulate immune responses
Haptens - ANSWER antigens too small to provoke immune responses; attach to carrier molecules
Humoral (antibody-mediated) immunity - ANSWER Mediated by antibodies that do not directly destroy a
pathogen but tag it for destruction
Many antibodies are dissolved in body fluids ("humors")
Can only work against the extracellular stages of infections by microorganisms
, cell-mediated immunity - ANSWER type of immunity produced by T cells that attack infected or
abnormal body cells. They attack within the cell.
MCH II - ANSWER antigen presenting cells triggers activation of Helper T-cells CD4 Cells; triggers
activation of B cells
MCH I - ANSWER CD8 + T lymphocytes recognize antigens bound to this
T/F Vaccines will stimulate both humoral and adaptive immunity - ANSWER true
Hemoglobin will unload oxygen faster when - ANSWER pH lowers become more acidic, Co2 increases,
body temperature increases, and BPG increasing
Hemoglobin will bind oxygen faster when - ANSWER pH will become more alkalin, Co2 will decrease,
body temperature will decrease, and BPG will decrease
active immunity - ANSWER A form of acquired immunity in which the body produces its own antibodies
against disease-causing antigens. Gives us memory B cells.
natural immunity - ANSWER Immunity that is partly inherited and partly developed through healthy
living.
aquired immunity - ANSWER Immunity obtained from the development of antibodies in response to
exposure to an antigen.
passive immunity - ANSWER the short-term immunity that results from the introduction of antibodies
from another person or animal.
inspiratory reserve volume - ANSWER Amount of air that can be forcefully inhaled after a normal tidal
volume inhalation. When you take a big inhalation before going under water.
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