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Cards In This Set
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The lymphatic system in the body functions to do all of the following
except:
to maintain normal blood volume.
to facilitate lymphocyte passage to
all parts of the body.
to eliminate local variations in the
chemical composition of the interstitial fluid.
to produce lymphocytes.
None of the above is an exception;
all of the above are correct.
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All are correct
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2 .
The
lymphatic system protects the body from:
the effects of inactivity.
the effects of aging.
viruses and bacteria.
wear and tear by replacing tissues
prior to their wearing out.
none of the
above
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C
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The
lymphocytes that fight infections in the connective tissues of the body reach
these areas by:
passing independently in and out of
circulatory vessels.
movement caused by the contraction of
the body musculature.
passive diffusion.
movement exclusively through the
lymphatic vessels.
none of the
above
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Passing independently in and out of circulatory vessels.
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Components
of the lymphatic system include the:
liver, spleen, gall bladder, thyroid
gland, and lung alveoli.
large intestine, liver, mediastinum,
and dorsal root ganglia.
pancreas, spleen, lymphatic vessels,
thymus, lymph nodes, and the thoracic duct.
superior vena cava, coronary sinus,
and hepatic portal vein.
none of the
above
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C
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Lymphatic vessels differ from arteries and veins because:
they have thicker walls than veins,
but these walls that are less thick than are those of arteries.
they have fewer valves than do veins.
they do not run together with the
arteries or veins in any cases.
the lymphatic valves are spaced so
closely that they give the vessel the appearance of a string of beads.
they have no significant differences.
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D
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The stem cells of primary lymphoid structures produce those that differentiate
into NK, B, and T cells.
True False |
True
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Lymphatic vessels originate in the:
spleen.
thymus and
pancreas.
bone marrow.
venous system.
peripheral tissues of the body.
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Peripheral tissues of the body.
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The lymphatic vessels that have valves are the:
lymphatic ducts.
large lymphatic
vessels.
lymphatic capillaries.
lymphatic sacs.
all of the
above
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Large lymphatic vessels
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Lymph capillaries:
typically run through the muscles to
reach the periphery of the body.
include lacteals that absorb digested
fat from the small intestine.
are not very permeable.
have closely joined endothelial
cells.
none of the
above
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B
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Lymph nodes:
manufacture lymph.
occur in all regions of the body.
do not occur in the
brain.
filter both blood and lymph.
receive lymph through the efferent
vessels.
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C
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Long-lived lymphocytes that circulate through the body to fight invading
pathogens are the:
B cells.
NK (=natural killer)
cells.
lymphocytes with varied antigen
sensitivities.
macrophages.
none of the
above
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C
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Lymphocytes respond to the presence of all of the following except:
foreign proteins.
increases and decreases in the levels
of lipids in the blood.
invading organisms.
abnormal body cells.
None of the above is an exception;
all of the above are correct.
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B
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Types of T cells include all of the following except:
suppressor T cells.
cytotoxic T cells.
helper T cells.
melanocytic cells.
None of the above is an exception;
all of the above cell types are kinds of T cells.
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D
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When is the thymus the most active?
during old age
It is equally active throughout the
life of the individual.
during infancy and
youth
from puberty to
adulthood
during middle
age
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C
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Tonsils include all of the following except:
palatine.
pharyngeal.
lingual.
laryngeal.
None of the above is an exception;
all of the above are true.
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D
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