Download 23_ClickerQuestionsPRS

Chapter
23
The Lymphoid
System
PowerPoint® Lecture Slides
prepared by Agnes Yard and
Michael Yard
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Copyright © 2008 Pearson Education, Inc.,
publishing as Pearson Benjamin Cummings
Which type of lymphocyte attacks foreign cells or body
cells infected by viruses?
a. suppressor T cells
b. cytotoxic T cells
c. plasmocytes
d. memory B cells
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
In the spleen, the cell population of the red pulp
includes:
a. free macrophages
b. red blood cells
c. fixed macrophages
d. all of the above
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
The thoracic duct collects lymph from ________ of the
body inferior to the diaphragm, and from ________
side of the body superior to the diaphragm.
a. both sides, the left side
b. the right side, both sides
c. both sides, the right side
d. the left side, both sides
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
In the immune response to bacterial infection, antigen
presentation does not lead to:
a. activation of B cells
b. activation of cytotoxic T cells
c. interferon release
d. activation of helper T cells
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Which of the following is/are not present in lymph?
a. microglia
b. macrophages of various types
c. lymphocytes
d. interstitial fluid
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Regarding the immune response, what is the first event
after the appearance of an antigen?
a. phagocytosis of the antigen by a
macrophage
b. stimulation of NK cells
c. activation of cytotoxic T cells
d. activation of B cells
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Which of the following statements regarding the spleen
is/are true?
a. Areas of white pulp form splenic cords,
which contain erythrocytes.
b. Areas of red pulp form lymphoid nodules.
c. The cell population of the red pulp includes
all of the normal components of the
circulating blood, plus fixed and free
macrophages.
d. All of the statements are true.
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
If a lymphatic vessel is compressed or blocked, or its valves are
damaged, lymph drainage may slow or cease, causing the
affected tissues to become distended and swollen. What is the
term for this condition?
a. erythematosus
b. lymphedema
c. lymphomegaly
d. lymphadenopathy
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Which of the following statements regarding the spleen
is incorrect?
a. It functions in the storage of iron recycled
from fragmented red blood cells.
b. Areas of white pulp form lymphoid nodules.
c. It functions in the initiation of immune
responses by B cells and T cells in response
to antigens in the circulating blood.
d. None of the statements is incorrect.
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Which of the following structures are generally not
visible because of their location?
a. lingual tonsils
b. pharyngeal tonsils
c. adenoids
d. palatine tonsils
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Lymphoid vessels originate in ________ tissues and
deliver lymph to the ________ system.
a. nervous, arterial
b. peripheral, venous
c. nervous, venous
d. peripheral, arterial
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
A typical B cell spends how long in a lymph node before
moving to another location?
a. approximately 30 hours
b. approximately 1 minute
c. approximately 30 minutes
d. approximately 5 hours
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
What is the term for large-diameter collecting vessels in
the lymphatic system?
a. anastomoses
b. lymphatic capillaries
c. cisterna chyli
d. lymphatic ducts
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Where does lymphopoiesis occur?
a. in the bone marrow and spleen
b. in the spleen and thymus
c. in the lymph nodes and spleen
d. in the bone marrow and thymus
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Aggregated B cells with germinal centers similar to
those of lymphoid nodules are found in which portion
of a lymph node ?
a. in the medulla
b. in the deep cortex
c. in the medullary cords
d. in the outer cortex
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Most immune responses begin in ________, where
immature or activated ________ divide to produce
many cells of the same type.
a. secondary lymphoid structures, lymphocytes
b. primary lymphoid structures, lymphocytes
c. primary lymphoid structures, macrophages
d. secondary lymphoid structures,
macrophages
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Acquired immune deficiency syndrome (AIDS) results
from a viral infection that selectively destroys which
cells?
a. memory B cells
b. T cells
c. plasmocytes
d. immunoglobulins (antibodies)
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
In which of the following are superficial lymphatics
located?
a. the dermis of the skin
b. the dense connective tissues of the body
c. the stratum spinosum of the epidermis
d. the subcutaneous layer next to the skin
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Regarding the thymus, ________ cells are scattered
among the lymphocytes, and produce thymic hormones
that promote the differentiation of functional ________.
a. reticular, B cells
b. plasmocytes, B cells
c. reticular, T cells
d. plasmocytes, T cells
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Which type of lymphocyte is responsible for “antibodymediated immunity?”
a. memory T cells
b. helper T cells
c. suppressor T cells
d. B cells
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Which lymph nodes filter lymph arriving from the
urinary and reproductive systems?
a. intestinal lymph nodes
b. mesenterial lymph nodes
c. abdominal lymph nodes
d. inguinal lymph nodes
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
With each ________, pressure ________ in the thoracic
cavity, and lymph is pulled from smaller lymphatic
vessels into lymphatic ducts.
a. inhalation, decreases
b. exhalation, increases
c. inhalation, increases
d. exhalation, decreases
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
What is the approximate blood pressure at the
proximal end of a systemic capillary, which forces
water and solutes out of the plasma?
a. 10 mm Hg
b. 5 mm Hg
c. 35 mm Hg
d. 100 mm Hg
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
With advancing age, ________ become less responsive to
antigens. Additionally, ________ are less responsive, and
antibody levels do not rise as quickly after antigen exposure.
a. macrophages, T cells
b. T cells, B cells
c. B cells, lymphocytes
d. B cells, T cells
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings
Lymphatic capillaries differ from vascular capillaries in that
the lymphatic capillaries are ________ in both diameter and
in sectional view; and lymphatic capillaries have ________
walls.
a. smaller, thinner
b. larger, thicker
c. larger, thinner
d. smaller, thicker
Copyright © 2008 Pearson Education, Inc., publishing as Benjamin Cummings