Question

answer-1What structure collects lymph from the lower abdomen, pelvis, lower limbs, and the left half of...

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.

Homework Answers

Answer #1

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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