Hicks BSC 216 Exam 2 Study Area With
Complete Solutions
Fluid found in the lymphatic vessels is known as... - ANSWER lymph
T or F: Lymph capillaries form a two-way system that moves lymph to and from
the heart. - ANSWER False; they are blind-ended.
Mucosa-associated lymphatic tissues (MALT) include the: - ANSWER tonsils
(peyer's patch and pancreas)
Which of the following is NOT a surface barrier serving as the first line of
defense? - ANSWER antibodies
Which lymphoid organ is required for the selection of a functional population of T
lymphocytes (T cells) for the immune system? - ANSWER thymus
T or F: Surface barriers, such as the cutaneous and mucous membranes,
provide innate immunity against pathogens. - ANSWER False; surface barriers
are physical, a first defense line and innate immunity is the second defense line.
What cells display portions of the pathogens (antigens) they ingest on their
plasma membranes? - ANSWER antigen-presenting cells
Which of the following is NOT a cytokine involved in innate immunity? - ANSWER
opsonins
How long after initial tissue damage does leukocytosis occur? - ANSWER 2-3
days
Where do T cells become immunocompetent? - ANSWER thymus
What protein, released by cytotoxic T (TC) cells, perforates a target cell's
plasma membrane so that enzymes can enter and fragment the target cell's
DNA? - ANSWER perforins
T or F: Self antigens usually generate an immune response in our own bodies. -
ANSWER False
IgA - ANSWER Found in secretions such as breast milk and saliva
, IgD - ANSWER The only antibody not secreted in significant amounts by B cells
IgE - ANSWER Binds antigens associated with parasitic pathogens and
allergens EEEW parasites & allergEEs
IgG - ANSWER The only antibody that can cross the placenta from mother to
fetus the o.G. antibody (started from the mom now we here...in the fetus)
IgM - ANSWER The first antibody secreted upon exposure to an antigen
(mmmmm girl you got exposed)
What type of cell is activated in lymphatic tissue by macrophages presenting
antigens during a viral infection? - ANSWER helper T (TH) cell
T cells and natural killer (NK) cells are largely involved in scanning the cells in
the body for tumor antigens, a function known as: - ANSWER immune
surveillance
Cancer cells can suppress T cell activity by releasing: - ANSWER cytokines
Blood transfusions between incompatible blood types results in: - ANSWER Type
II, or antibody-mediated, hypersensitivity
What cells decline in number during the final phase of HIV-1 infection, when an
individual is said to have AIDS? - ANSWER helper T (TH) cells
T or F: Immunodeficiency disorders can result from a failure of one component
of the immune system. - ANSWER True
Which lymph trunks receive lymph from the upper limbs? - ANSWER subclavian
trunks
What mucosa-associated lymphatic tissue (MALT) traps pathogens entering the
nasal and oral cavities? - ANSWER tonsils
Where are pathogens filtered from lymph? - ANSWER lymph nodes
Surface barriers, such as cutaneous and mucous membranes, serve the immune
system as the: - ANSWER first line of defense
What are the primary cells of adaptive immunity? - ANSWER lymphocytes
Which of the following is NOT a cardinal sign of inflammation? - ANSWER cold
Which of the following are true of class I major histocompatibility complex (MHC)
molecules? - ANSWER Class I MHC molecules present endogenous antigens.
Complete Solutions
Fluid found in the lymphatic vessels is known as... - ANSWER lymph
T or F: Lymph capillaries form a two-way system that moves lymph to and from
the heart. - ANSWER False; they are blind-ended.
Mucosa-associated lymphatic tissues (MALT) include the: - ANSWER tonsils
(peyer's patch and pancreas)
Which of the following is NOT a surface barrier serving as the first line of
defense? - ANSWER antibodies
Which lymphoid organ is required for the selection of a functional population of T
lymphocytes (T cells) for the immune system? - ANSWER thymus
T or F: Surface barriers, such as the cutaneous and mucous membranes,
provide innate immunity against pathogens. - ANSWER False; surface barriers
are physical, a first defense line and innate immunity is the second defense line.
What cells display portions of the pathogens (antigens) they ingest on their
plasma membranes? - ANSWER antigen-presenting cells
Which of the following is NOT a cytokine involved in innate immunity? - ANSWER
opsonins
How long after initial tissue damage does leukocytosis occur? - ANSWER 2-3
days
Where do T cells become immunocompetent? - ANSWER thymus
What protein, released by cytotoxic T (TC) cells, perforates a target cell's
plasma membrane so that enzymes can enter and fragment the target cell's
DNA? - ANSWER perforins
T or F: Self antigens usually generate an immune response in our own bodies. -
ANSWER False
IgA - ANSWER Found in secretions such as breast milk and saliva
, IgD - ANSWER The only antibody not secreted in significant amounts by B cells
IgE - ANSWER Binds antigens associated with parasitic pathogens and
allergens EEEW parasites & allergEEs
IgG - ANSWER The only antibody that can cross the placenta from mother to
fetus the o.G. antibody (started from the mom now we here...in the fetus)
IgM - ANSWER The first antibody secreted upon exposure to an antigen
(mmmmm girl you got exposed)
What type of cell is activated in lymphatic tissue by macrophages presenting
antigens during a viral infection? - ANSWER helper T (TH) cell
T cells and natural killer (NK) cells are largely involved in scanning the cells in
the body for tumor antigens, a function known as: - ANSWER immune
surveillance
Cancer cells can suppress T cell activity by releasing: - ANSWER cytokines
Blood transfusions between incompatible blood types results in: - ANSWER Type
II, or antibody-mediated, hypersensitivity
What cells decline in number during the final phase of HIV-1 infection, when an
individual is said to have AIDS? - ANSWER helper T (TH) cells
T or F: Immunodeficiency disorders can result from a failure of one component
of the immune system. - ANSWER True
Which lymph trunks receive lymph from the upper limbs? - ANSWER subclavian
trunks
What mucosa-associated lymphatic tissue (MALT) traps pathogens entering the
nasal and oral cavities? - ANSWER tonsils
Where are pathogens filtered from lymph? - ANSWER lymph nodes
Surface barriers, such as cutaneous and mucous membranes, serve the immune
system as the: - ANSWER first line of defense
What are the primary cells of adaptive immunity? - ANSWER lymphocytes
Which of the following is NOT a cardinal sign of inflammation? - ANSWER cold
Which of the following are true of class I major histocompatibility complex (MHC)
molecules? - ANSWER Class I MHC molecules present endogenous antigens.
