Multiple Choice Quiz


1	An example of a nonspecific chemical barrier to infection is
		A)	unbroken skin
		B)	lysozyme in saliva
		C)	cilia in trachea
		D)	all of the above


2	Which nonspecific host defense is associated with the trachea?
		A)	lacrimation
		B)	ciliary lining
		C)	desquamation
		D)	lactic acid


3	Which of the following blood cells function primarily as phagocytes?
		A)	eosinophils
		B)	basophils
		C)	lymphocytes
		D)	neutrophils


4	Which of the following is not a lymphoid tissue?
		A)	spleen
		B)	thyroid gland
		C)	lymph nodes
		D)	GALT


5	What is included in GALT?
		A)	thymus
		B)	Peyer's patches
		C)	tonsils
		D)	breast lymph nodes


6	Monocytes are ______ leukocytes that develop into ______
		A)	granular, phagocytes
		B)	agranular, mast cells
		C)	agranular, macrophages
		D)	granular, T cells


7	Which of the following inflammatory signs specifies pain?
		A)	tumor
		B)	dolor
		C)	calor
		D)	rubor


8	An example of an inflammatory cytokine that stimulates vasodilation is
		A)	histamine
		B)	collagen
		C)	complement C5a
		D)	interferon


9	_______ is an example of an inflammatory cytokine that stimulates chemotaxis.
		A)	Endotoxin
		B)	Serotonin
		C)	Fibrin clot
		D)	Interleukin-2


10	An example of an exogenous pyrogen is
		A)	interleukin-1
		B)	complement
		C)	interferon
		D)	endotoxin


11	______ interferon is secreted by _______ and is involved in destroying viruses.
		A)	Gamma, fibroblasts
		B)	Beta, lymphocytes
		C)	Alpha, lymphocytes
		D)	Beta, fibroblasts


12	Which of the following substances is not produced by phagocytes to destroy engulfed microorganisms?
		A)	myeloperoxidase
		B)	superoxide anion
		C)	hydrogen peroxide
		D)	bradykinin


13	Which of the following is the end product of the complement system?
		A)	properdin
		B)	cascade reaction
		C)	membrane attack complex
		D)	complement factor C9


14	Immunologic memory refers to the ability of the immune system to
		A)	recognize millions of different antigens
		B)	react with millions of different antigens
		C)	migrate from the blood vessels into the tissues
		D)	recall a previous immune response


15	Which subset of WBCs accounts for acquired, specific immunity?
		A)	monocytes
		B)	B cells
		C)	T cells
		D)	both b and c

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