Vander's Human Physiology 15th Edition By Eric Widmaier; Hershel Raff; Kevin Strang 9781259903885 Chapter 1-19 Complete Guide .
Vander's Human Physiology 15th Edition By Eric Widmaier; Hershel Raff; Kevin Strang 9781259903885 Chapter 1-19 Complete Guide .
Test Bank for Vanders Human Physiology 15th Edition Widmaier / All Chapters 1-18 / Complete Guide A+
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Test Bank For Vander's Human Physiology 15th Edition By Eric
Widmaier; Hershel Raff; Kevin Strang 9781259903885 Chapter
1-19 Complete Guide .
The immune system destroys or neutralizes:
A. bacteria.
B. viruses.
C. nonmicrobial foreign substances.
D. cancer cells that arise in the body.
E. All of the choices are correct - ANSWER: E. All of the choices are correct
Which is NOT true about viruses?
A. They consist of a nucleic acid surrounded by a carbohydrate shell.
B. They require a host cell in order to reproduce themselves.
C. They may reside in a host cell for years without killing it.
D. They may cause a host cell to become cancerous.
E. They may have genetic information in the form of RNA. - ANSWER: A. They consist of a nucleic acid
surrounded by a carbohydrate shell.
(protein shell is correct)
The killing of virus-infected or cancerous cells by the immune system is called:
A. immune oversight.
B. immune surveillance.
C. tissue immunity.
D. phagocytosis.
E. hemostasis. - ANSWER: B. immune surveillance.
Which is TRUE regarding the immune system cells?
A. Plasma cells are derived from T cells.
B. Macrophages are derived from basophils.
C. Macrophages are derived from monocytes.
D. The immune cells found within the bloodstream are called erythrocytes.
E. Neutrophils are classified as lymphoid cells. - ANSWER: C. Macrophages are derived from
monocytes.
Which of the following statements about the immune system is TRUE?
A. Neutrophils, basophils, eosinophils and monocytes originate in bone marrow.
B. Natural killer cells produce specific antibodies that kill bacteria and viruses.
C. Mast cells are derived from monocytes.
D. Plasma cells are derived from T lymphocytes.
E. Macrophages are derived from neutrophils. - ANSWER: A. Neutrophils, basophils, eosinophils and
monocytes originate in bone marrow.
Which of the following statements regarding the chemical mediators of inflammatory responses is
NOT true?
A. They may be secreted by cells residing in the area of injury.
B. They may be secreted by cells that enter the affected area.
C. They may be generated by enzymatic cleavage of proteins in plasma.
D. They are all peptides.
E. They may be chemotaxins. - ANSWER: D. They are all peptides.
After initial entry of bacteria into a cut in the skin, vasodilation of local blood vessels and increased
capillary permeability occur. Which of the following events is NOT part of the adaptive immune
response to the infection?
A. antigen interaction with lymphocytes.
, B. production of antibodies that bind to antigens.
C. B-cell differentiation into plasma cells.
D. vasodilation of local blood vessels.
E. activation of lymphocytes. - ANSWER: D. vasodilation of local blood vessels.
Chemotaxis:
A. refers to the chemical attraction of phagocytes to a site of inflammation.
B. is important only for innate immune responses.
C. is important only for adaptive immune responses. D. refers to the engulfing of microbes and foreign
molecules by macrophages.
E. refers to dilation of blood vessels by chemicals released by damaged tissue cells. - ANSWER: A.
refers to the chemical attraction of phagocytes to a site of inflammation.
Which of the following cell types binds to antigens on plasma membranes of target cells and directly
destroys the cells?
A. neutrophils
B. NK cells
C. Cytotoxic T cells (CD8 cells)
D. Helper T cells (CD4 cells)
E. B cells - ANSWER: C. Cytotoxic T cells (CD8 cells)
Which of the following statements regarding phagocytes and phagocytosis is true?
A. Macrophages, monocytes, and mast cells are phagocytes.
B. Contact of phagocytes with microbes stimulates the phagocytes to release chemicals that mediate
the inflammatory response.
C. Phagocytosis is stimulated by the presence of proteins called rhodopsins.
D. Phagocytosis is the process by which leukocytes exit the bloodstream.
E. Phagocytosis is a process that only occurs within the bloodstream. - ANSWER: B. Contact of
phagocytes with microbes stimulates the phagocytes to release chemicals that mediate the
inflammatory response.
Which of the following statements regarding phagocytosis is TRUE?
A. Macrophages are the only phagocytes in the tissues.
B. The microbe engulfed by the phagocyte is killed by lysosomal enzymes and hydrogen peroxide.
C. Phagocytosis is controlled by a negative feedback mechanism whereby phagocytes release
chemicals that inhibit further phagocytosis.
D. The microbe engulfed by the phagocyte is killed by the membrane attack complex (MAC).
E. Antibodies found inside lysosomes attack and kill microbes that are engulfed by phagocytosis -
ANSWER: B. The microbe engulfed by the phagocyte is killed by lysosomal enzymes and hydrogen
peroxide.
Cells of the immune system capable of phagocytosis include:
A. macrophages, NK cells, and basophils.
B. B cells, T cells, and macrophages.
C. monocytes, neutrophils, and plasma cells.
D. macrophages, neutrophils, and dendritic cells.
E. macrophages, mast cells, and lymphocytes - ANSWER: D. macrophages, neutrophils, and dendritic
cells.
Which of the following statements regarding complement is FALSE?
A. Certain complement proteins are always circulating in the blood in an inactive state.
B. Activated complement can form a membrane attack complex, which forms pores in microbe
membranes.
C. Activated complement can stimulate cells to secrete inflammation-mediating chemicals.
D. The complement pathway is always dependent upon activation of the first complement protein,
C1.
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