An Introduction to Human Disease, Seventh Edition

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Please read each question and select your answer from the choices provided. You must complete all of the questions in order to view your results. At the end of each exam, you have the option to e-mail your results to your instructor.

1: The immune system response depends primarily on:
	A: lymphocytes
	B: antigen-producing cells
	C: hemocrit
	D: phagocytes
	E: A and B

2: The cells of the immune system communicate through
	A: heliographs
	B: the central nervous system
	C: the peripheral nervous system
	D: cytokines

3: Immature lymphocytes develop immune competence in which two sites?
	A: kidneys and liver
	B: thymus and bone marrow
	C: pancreas and gall bladder
	D: andrenal glands and brain

4: T lymphocytes and classified into major groups based on:
	A: pH index
	B: Rh factor
	C: CD antigen
	D: none of the above

5: NK Cells lack T or B receptors, leaving them unable to destroy abnormal cells without prior antigenic contact.
	A: TRUE
	B: FALSE

6: These cells require macrophage-processed antigens in order to respond
	A: T cells
	B: B cells
	C: NK cells
	D: All of the above

7: Which type of T cells attack and destroy infected cells?
	A: Delayed
	B: Memory
	C: Helper
	D: Cytotoxic

8: Delayed hypersensitivity cells help suppress infections by:
	A: promoting the immune response
	B: destroying infected cells
	C: retaining antigen memory in case of future infection
	D: attracting macrophages, cytoxic T cells and NK cells

9: The immunoglobulin that forms a complex pentamer is:
	A: IgG
	B: IgA
	C: IgM
	D: IgE
	E: IgD

10: Immunoglobulins contain how many light chains?
	A: 1
	B: 2
	C: 3
	D: 4
	E: 5

11: Which type of hypersensitivity reaction is characterized by complement-activated and cell-tissue injury?
	A: Delayed Hypersensitivity
	B: Immune comples disease
	C: cytotoxic hypersensitivity
	D: immediate hypersensitivity
	E: B and C

12: What situations might make immune system suppression desirable?
	A: The development of autoimmune disease
	B: Organ transplantation
	C: Rh hemolytic disease
	D: All of the above

13: The method of immune system suppression that works primarily by destroying lymphocytes is:
	A: radiation
	B: cytotoxic drugs
	C: adrenal corticosteroids
	D: antibodies

14: Grafting of foreign tissue can provoke an immune response because the tissue contains:
	A: antibodies
	B: antigens
	C: cytotoxins
	D: NK cells

15: Autoimmune diseases of the collagen are characterized by
	A: elevated NK cell levels
	B: destruction of delayed hypersensitivity cells
	C: necrosis
	D: degeneration of fibrous connective tissue
	E: C and D

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