Q. The walls of lymphatic vessels are similar to those of cardiovascular _____________.
A. arteries
B. veins
C. capillaries
D. distributing arteries
Answer- veins
Q. The lymphatic trunk that drains the upper limb is the _______________.
A. bronchomediastinal trunk
B. intestinal trunk
C. subclavian trunk
D. jugular trunk
Answer- subclavian trunk
Q. Lymphatic capillaries are able to receive cellular debris and foreign particles because ________________.
A. of the structure of their flaplike valves
B. the fluid pressure is so great it forces this material into the capillaries
C. lymphatic and cardiovascular capillaries are designed to receive this material
D. of amoeboid motion of the foreign particles
Answer- of the structure of their flaplike valves
Q. Which of these is not a function of lymph nodes?
A. house lymphocytes and macrophages
B. filter lymph
C. produce red blood cells
D. produce lymphocytes
Answer- produce red blood cells
Q. What is the role of the thymus in protecting the body against disease?
A. It houses decaying lymphocytes, recycling the nutrients within them.
B. It is the site of maturation of T lymphocytes and the production of thymosin.
C. It is the site of production and maturation of B lymphocytes.
D. Macrophages and monocytes are produced here and migrate to other tissues of the body.
Answer- It is the site of maturation of T lymphocytes and the production of thymosin.
Q. Select the statement that is true about the spleen.
A. The spleen filters the lymph much the same way the lymph nodes filter the blood.
B. The spleen harbors eosinophils waiting for parasites to attack the body.
C. The spleen is the major site of red and white blood cell production in the adult.
D. The spleen filters the blood much the same way the lymph nodes filter the lymph.
Answer- The spleen filters the blood much the same way the lymph nodes filter the lymph.
Q. Which of these is not a nonspecific defense against disease.
A. species resistance
B. phagocytosis
C. interferon
D. hair color and texture
Answer- hair color and texture
Q. Why do tissues swell during inflammation?
A. Tissues swell during inflammation because of the volume of bacteria present in the wound.
B. Tissues swell during inflammation because of the number of blood cells attacking the bacteria.
C. Tissues swell during inflammation because the increased permeability of capillaries causes fluids to accumulate in the area.
D. Tissues swell during inflammation only because of pus accumulation.
Answer- Tissues swell during inflammation because the increased permeability of capillaries causes fluids to accumulate in the area.
Q. Where are B lymphocytes believed to mature in adult humans?
A. Bursa of Fabricus
B. bone marrow
C. compact bone
D. liver
Answer- bone marrow
Q. What traits characterize antigens?
A. Antigens may be proteins, polysaccharides, glycolipids, or glycoproteins that stimulate an immune response.
B. Antigens come only from foreign microorganisms.
C. Antigens are immunoglobulins the body produces in response to exposure to foreign organisms.
D. Antigens are proteins that stimulate an immune response.
Answer- Antigens may be proteins, polysaccharides, glycolipids, or glycoproteins that stimulate an immune response.
Q. Which of the following molecules is not generally produced by T cells and macrophages?
A. growth-inhibiting factors
B. cytokines
C. colony-stimulating factors
D. tissue thromboplastin
Answer- tissue thromboplastin
Q. How are B cells activated?
A. A B cell is activated when it encounters an antigen that matches its B cell receptors and receives cytokines from helper T cells.
B. B cells are activated when they encounter their twin T cell component.
C. B cells are activated when red blood cells release cytokines.
D. B cells are activated when their matching antibodies attach to their surfaces and macrophages release cytokines.
Answer- A B cell is activated when it encounters an antigen that matches its B cell receptors and receives cytokines from helper T cells.
Q. Which type of immunoglobulin molecule is passed on to nursing infants in breast milk?
A. IgG
B. IgM
C. IgA
D. IgE
Answer- IgA
Q. Antibodies interact with antigens in all of these ways except _______________.
A. opsonization
B. attracting macrophages to the area (chemotaxis)
C. releasing interferon
D. agglutination
Answer- releasing interferon
Q. Vaccines generally confer what type of immunity?
A. artificially acquired passive immunity
B. artificially acquired active immunity
C. naturally acquired passive immunity
D. naturally acquired active immunity
Answer- artificially acquired active immunity
Q. Which of these would not be found in lymph fluid?
A. proteins
B. sodium ions
C. neutrophils
D. erythrocytes
Answer- erythrocytes
Q. Which area is not drained by the thoracic duct?
A. right leg
B. left leg
C. right arm
D. left arm
Answer- right arm
Q. The thoracic duct empties directly into the _____ vein.
A. right subclavian
B. left subclavian
C. right axillary
D. brachiocephalic
Answer- left subclavian
Q. Which of these does not belong with the others?
A. thymus
B. lymph node
C. sinus
D. nodule
Answer- thymus
Q. Where would Peyer's patches be found?
A. colon
B. small intestine
C. liver
D. throat
Answer- small intestine
Q. Which lymph nodes could not be palpated with the fingers?
A. axillary
B. inguinal
C. cervical
D. mesenteric
Answer- mesenteric
Q. Which lymphatic area is larger in a child than an adult?
A. spleen
B. axillary lymph node
C. thymus
D. thoracic duct
Answer- thymus
Q. Which is not a property of the red pulp within the spleen?
A. produces lymphocytes
B. has erythrocytes
C. has macrophages
D. produces erythrocytes
Answer- produces lymphocytes
Q. Which of these is not a non-specific defense mechanism?
A. bacteria
B. stomach pH
C. antibodies
D. skin sebaceous glands
Answer- antibodies
Q. The most numerous and main cell in the inflammatory response is the _____.
A. macrophage
B. neutrophil
C. monocyte
D. basophil
Answer- neutrophil
Q. Substances called the _____ are capable of directly inhibiting DNA synthesis.
A. antibodies
B. interferons
C. complement system
D. histamines
Answer- interferons
Q. The lymphatic vessels function to transport fats and proteins from the intestinal villi to the blood.
A. TRUE
B. FALSE
C. Nothing can be said
D. None of the mentioned
Answer- FALSE
Q. Lymphatic vessels contain valves to allow for one-way movement of fluid.
A. TRUE
B. FALSE
C. Nothing can be said
D. None of the mentioned
Answer- TRUE
Q. Thymosin is an enzyme required to stimulate T-cell production in the spleen.
A. TRUE
B. FALSE
C. Nothing can be said
D. None of the mentioned
Answer- FALSE
Q. T-cell lymphocytes die if they are not capable of recognizing foreign particles.
A. TRUE
B. FALSE
C. Nothing can be said
D. None of the mentioned
Answer- TRUE
Q. The lymphatic system can either cause or cure a cancer.
A. TRUE
B. FALSE
C. Nothing can be said
D. None of the mentioned
Answer- TRUE
Q. Removal of the spleen will impair the immune capabilities of the individual.
A. TRUE
B. FALSE
C. Nothing can be said
D. None of the mentioned
Answer- TRUE
Q. Pus is a collection of living and dead white blood cells.
A. TRUE
B. FALSE
C. Nothing can be said
D. None of the mentioned
Answer- TRUE