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MCMP 422 Latest Exam 1 Self Check With Complete solutions
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MCMP 422 Latest Exam 1 Self Check With Completesolutions 2024-2025
Which of the following are characteristics of innate immunity:
inflammation
enhancement in recognition of the pathogen, after initial response
rapid response
specific to a particular pathogen
cytokine production. - Answer inflammation
rapid response
cytokine production.
Which of the following pairs of associations is incorrect?
large granular lymphocyte: T cell
megakaryocyte: platelet
B cell: plasma cell
monocyte: macrophage
myeloid progenitor: neutrophil. - Answer large granular lymphocyte: T cell
Which of the following statements is FALSE?
Hematopoiesis occurs at different anatomical sites during human development.
The hematopoietic stem cell gives rise to the progenitor for WBCs, but not RBCs.
Hematopoietic stem cells are self-renewing.
Platelets participate in clotting reactions to prevent blood loss.
Megakaryocytes do not circulate and thus reside only within the bone marrow. - Answer
The hematopoietic stem cell gives rise to white blood cells, but a different stem cell is
,the progenitor of red blood cells.
Primary lymphoid tissues are the sites where lymphocytes _______, whereas secondary
lymphoid tissues are the sites where lymphocytes _______.
are stimulated; develop and mature
encounter pathogens; undergo apoptosis
develop and mature; become stimulated
undergo clonal selection; differentiate from hematopoietic stem cells
die; are phagocytosed after death. - Answer develop and mature; become stimulated
Immune cells in the lymphatic circulation are directly deposited into which of the
following anatomic sites so that the cells may reenter the bloodstream?
right aorta
left subclavian vein
left carotid artery
high endothelial venule
hepatic vein - Answer left subclavian vein
Effector cells that secrete antibodies are known as ____.
natural killer cells
cyto-toxic T cells
helper T cells
M cells
plasma cells
regulatory T cells. Answer plasma cells
A bacterium that causes a common disease in a population that has been previously
,exposed to it is termed ___.
opportunistic
resistant
commensal
endemic
attenuated Answer endemic
Which of the following statements about neutrophils is NOT true? Neutrophils are
mobilized from the bone marrow to sites of infection when needed.
Neutrophils are active only under aerobic conditions.
Neutrophils are phagocytic.
Neutrophils make up pus, which is composed of dead neutrophils.
Dead neutrophils are eliminated from infected areas by macrophages - Answer
Neutrophils are active only under aerobic conditions.
The _____ is (are) the lymphoid organ(s) that filter(s) the blood.
spleen
tonsils
Peyer's patches
appendix
adenoids. - Answer spleen
When effector lymphocytes produce _____, an inflammatory response results.
lysozyme
defensins
lymph
sebum
cytokines - Answer cytokines
The last cases of smallpox were reported in the ____.
, 1950s
1960s
1970s
1980s
1990s - Answer 1970s
Which of the following is FALSE regarding the spleen?
It does not contain T cells
It filters blood as well as lymph
It is populated by specialized cells called M cells
It receives pathogens via afferent lymphatic vessels
It has no relation with the lymphatics - Answer It is inhabited by specialized cells known
as M cells
Which of the following pairs is mismatched?
lymphocytes: innate immune response
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