FREE RADIOLOGY AND STUDY GAMES ABOUT RTE 2712

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FREE RADIOLOGY AND STUDY GAMES ABOUT RTE 2712

WEEK 3 EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -206 Questions and Answers -format set of multiple-choice -Expert- Explanation Question 1: The ability to demonstrate immune response upon exposure to antigen is called

Answer:

immunological competence Question 2: The structures in the lymphoid system that act as a way station for cancer cells are the

Answer:

Lymph nodes Question 3: The chemical mediator responsible for killing tumor cells, stimulating T cell activity, and inhibiting parasites and viruses are termed

Answer:

Tumor necrosis factors

Question 4: Lymph nodes

Answer:

Produce antibodies from specialized T cells, and act as a "check station" for cancer cells

Question 5: B cells are involved with ___ and create a chemical attack on ____

Answer:

humoral responses; antigens

Question 6: Nonspecific defense strategies

Answer:

Physical barrier, phagocytes, immunological surveillance, Interferons, Complement sys., Inflammation, and fever

Question 7: Complement activation

Answer:

Stimulates inflammation, attract phagocytes, and enhances phagocytosis

Question 8: Hormone concentration levels are most commonly controlled by

Answer:

negative feedback

Question 9: Found in glandular secretions (tears, mucus)

Answer:

IgA

Question 10: Excessive immune responses to antigens are

Answer:

Allergies

Question 11: innate immunity

Answer:

present at birth

Question 12: microglia

Answer:

CNS macrophages

Question 13: The role of the spleen is slightly different than other lymph organs because it also

Answer:

filters blood

Question 14: An inflammatory response is triggered when

Answer:

mast cells release histamine, serotonin, and heparin

Question 15: T cells are involved with ______ and ____ attack pathogens

Answer:

cell-mediated responses; directly Question 16: Classes of Antibodies: Attacks pathogens before they enter the body tissue

Answer:

IgA

Question 17: Mobilizes defense; accele repairs; inhibits pathogens

Answer:

Fever (rises above 37.2^C)

Question 18: Lymph flows along a network of lymphatics that originates in the

Answer:

Lymphatic capillaries Question 19: Lymphocytes that assist in the regulation and coordination of the immune response are

Answer:

Helper T cells and suppressor T cells

Question 20: The body's two major defense systems

Answer:

Nonspecific defense and specific defense

Question 21: The hormones released by synthesizing cells that make neighboring cells resistant to viral infection, thereby slowing the spread of the virus, are called

Answer:

Interferons

Question 22: The major histocompatibility complex (MHC)

Answer:

is a membrane protein that can recognize foreign antigens

Question 23: The lymphoid system

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Helps maintain normal blood volume, fights infection, eliminates variations in composition of interstitial fluid

Question 24: Encapsulated masses of lymphoid tissue containing lymphocytes.

Answer:

Lymph nodes

Question 25: appears following exposure to an antigen

Answer:

active immunity

Question 26: microphages

Answer:

neutrophils, eosinophils

Question 27: Memory B cells

Answer:

Respond to subsequent infections that involve the same antigen

Question 28: An important second messenger in hormonal action is

Answer:

cAMP