answer-1What structure collects lymph from the lower abdomen, pelvis, lower limb
ID: 300563 • Letter: A
Question
answer-1What structure collects lymph from the lower abdomen, pelvis, lower limbs, and the left half of the head, neck, and chest?
a.right lymphatic duct
b.pelvic lymphatic trunk
c.left lymphatic capillary system
d. thoracic duct
answer-D
2Which of the following structures contains the largest collection of lymphoid tissue in the body?
a. tonsils
b.spleen
c.lymph nodes
d.appendix
answer-B
3.What effect would antihistamines have on the inflammatory response during an infection?
A. They would have no effect.
B. they would slow down the repair process.
C.They would increase the blood flow to the area.
D. They would prevent blood from clotting.
answer-B
4. Which cells are responsible for antibody-mediated immunity?
A.helper T cells
B.suppressor T cells
C.B cells
D.NK cells
answer-C
5.immunity develops from deliberate exposure to an antigen through vaccination.
A. Artificially induced active
B.Naturally acquired passive
C.Naturally acquired active
DArtificially induced passive
6. Administration of a vaccine against a particular pathogen does not provide protection against other pathogens. This is an example of immune system
memory. tolerance. versatility. specificity.
7. Which cells coordinate adaptive (specific) and innate (nonspecific) defenses, and stimulate both cell-mediated and antibody-mediated immunity?
memory T cells
helper T cells
plasma cells
NK cells
8A primary immune response is _____ than a secondary immune response.
slower, stronger, and more prolonged
faster, weaker, and more prolonged
faster, stronger and more prolonged
slower, weaker, and less prolonged
9Antibodies may promote inflammation by stimulating which of the following cells?
basophils and eosinophils
mast cells and lymphocytes
neutrophils and eosinophils
basophils and mast cells
10. Inappropriate or excessive immune responses to antigens are called
immunodeficiency diseases.
allergies.
autoimmune disorders.
immunological incompetence. 11
11.Which are the primary cells of the lymphatic system?
lymphocytes
phagocytes
mast cells
pyrogens
lymph nodes
12. Innate immunity is ______________ whereas adaptive immunity is ________________.
artificial; natural
nonspecific; specific
specific; nonspecific
natural; artificial
13. Lymph returns to the venous circulation by way of emptying into the
dural sinus.
inferior vena cava
superior vena cava.
right lymphatic duct
subclavian veins.
14.Lymph nodes
contain the largest collection of lymphoid tissue in the body.
stimulate lymphocyte stem-cell division.
purify lymph before it reaches the veins.
remove abnormal blood cells and components.
are the site of T cell maturation.
15.The role of the spleen is slightly different from other lymph organs because it
filters blood.
produces antibodies.
produces memory cells.
filters lymph.
contains lymphocytes.
16. Which of the following is the "first line of cellular defense" against foreign compounds or pathogens?
plasma cells
phagocytes
T cells
B cells
NK cells
17. Which of the following is an example of a physical barrier, which is an innate defense mechanism?
cytokines
secretions of sebaceous glands
perforins
histamine and heparin
fixed macrophages
18. Which cell population plays a pivotal role in the process of inflammation?
cytokines
complement proteins
NK cells
monocytes
mast cell
19.Which cells have a primary role in cell-mediated immunity?
NK cells
B cells
plasma cells B cells
antigens
T cellsls
20. When an antigen triggers an immune response, it usually activates ________ first.
B cells
T cells
NK cells
plasma cells
21. enable the immune system to launch a faster, stronger response to a previously encountered antigen.
NK cells
Pathogenic cells
Helper T cells
Plasma cells or memory cell
22. Failure of the immune system to respond to the presence of antigens is known as __________________; overreaction of the immune system to the presence of antigens is known as __________________.
allergy; anaphylaxis
immunodeficiency; allergy
AIDS; SCID
an autoimmune disorder; immunodeficiency
23. Inappropriate or excessive immune responses to antigens are defined as
allergies.
immunodeficiency diseases.
characteristics of HIV infection.
characteristics of AIDS.
common in the elderly.
Explanation / Answer
1) D - Thoracic duct
2) B - Spleen.
3) C - Prevent blood clotting
4) C - B cells
5) D - Artificially induced passive
6) Specificity
7) b - Helper T cells
8) D- Slower, weaker and less prolonged
9) B Mast cells and lymphocytes
10) Allergy/Hypersentivity.
11) Lymphocytes.
12) Non sepecific; specific.
13) D - Sub clavian veins via internal jugular vein
14) Lymph nodes
15) Filters blood
16) Phagocytes
17) Fixed Macrophages
18) Cytokines(antiinflamatory) - macrophages are most number of cells present at an inflammation site and release cytokines to decrese immune reactions.
19) T - cells
20) NK cells
21) Plasma/memory cells
22) Immunodeficency; anaphylaxis
23) Inappropriate or excessive immune reaponse to antigen is - Anaphylaxis or hypersensitivity.
6)
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