Choose the best answer

1		The structure of the larger lymphatic vessels is similar to the structure of cardiovascular
			A)	arteries
			B)	arterioles
			C)	veins
			D)	venules
2		The lymphatic ducts that direct lymph into blood circulation are called the _________ duct and the ________ duct.
			A)	anterior lymphatic, abdominopelvic
			B)	left lymphatic, subclavian
			C)	right lymphatic, thoracic
			D)	subclavian, thoracic
3		Which of the following is not an aspect of spleen structure and function?
			A)	Serves as blood reservoir.
			B)	Cleanses the lymph.
			C)	Houses numerous lymphocytes.
			D)	Contains red pulp and white pulp.
4		Which of the following is not an aspect of thymus structure and function?
			A)	Serves as the site for T cell maturation.
			B)	Located in the thoracic cavity.
			C)	Larger in children than in adults.
			D)	Secretes the hormone thyroxin.
5		Which of the following is not an example of nonspecific defense?
			A)	inflammatory reaction
			B)	antibody-antigen reaction
			C)	complement system
			D)	interferon secretion
6		Which of the following is not an aspect of the inflammatory reaction?
			A)	Leukocytes squeeze through capillary walls.
			B)	Accumulation of tissue fluid.
			C)	Histamine release.
			D)	Decreased capillary permeability.
7		The development of holes in bacterial plasma membranes is caused by
			A)	antibodies
			B)	complement proteins
			C)	histamine
			D)	interferon
8		Antibodies are secreted by
			A)	memory B cells
			B)	plasma cells
			C)	helper T cells
			D)	killer T cells
9		Most antibodies belong to the class
			A)	IgA
			B)	IgD
			C)	IgE
			D)	IgG
10		T cell activation requires
			A)	B cell activation.
			B)	MHC-antigen complex followed by B cell activation.
			C)	antigen-presenting cell (APC) complex sometimes followed by MHC complex.
			D)	A, B, and C are required for T cell activation.
11		Which of the following would provide passive immunity?
			A)	vaccination
			B)	maternal antibodies crossing the placenta to the fetus
			C)	maternal antibodies in breast milk
			D)	B and C, but not A
			E)	A, B, and C
12		HIV infects
			A)	helper T cells
			B)	killer T cells
			C)	memory B cells
			D)	plasma cells
13		A person with a T lymphocyte count between 200 and 499 per cubic mm, swollen lymph nodes, and a recurrent fever would be in the __________ stage of an HIV-1 infection.
			A)	category A
			B)	category B
			C)	category C
14		Which class of antibodies causes allergies?
			A)	IgA
			B)	IgD
			C)	IgE
			D)	IgG
15		During an allergic reaction, mast cells release
			A)	allergens
			B)	antibodies
			C)	histamine
			D)	interferon
16		The lymphoid organs are so called because they contain lymph.
			A)	True
			B)	False
17		A damaged spleen can be removed from a body and the person can still survive.
			A)	True
			B)	False
18		B cells are responsible for cell mediated immunity.
			A)	True
			B)	False
19		IgG antibodies have 2 antigen binding sites.
			A)	True
			B)	False
20		Active immunity develops after an individual is infected with a virus or bacterium.
			A)	True
			B)	False
21		What do we call a protein produced by virus-infected cells?
			A)	mast
			B)	histamine
			C)	NK cells
			D)	Interferon
22		A retrovirus has what kind of genetic material?
			A)	r-DNA
			B)	RNA
			C)	d-RNA
			D)	c-DNA
23		Anaphylactic shock is an example of a(n):
			A)	tissue rejection.
			B)	an immediate allergic response.
			C)	B cells aging.
			D)	rheumatoid arthritis.
24		The genetic material of a virus has a low mutation rate.
			A)	True
			B)	False
25		Antibodies of the same type and produced by plasma cells derived from the same B cell are called what?
			A)	monoclonal antibodies
			B)	anticlonal antibodies
			C)	SARS
			D)	radioactive