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Exam 17: Immunity and Infection

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Question 41

Multiple Choice

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Which of the following infections is transmitted by a mosquito bite?

A) E.coli O157:H7
B) West Nile virus
C) Creutzfeldt-Jakob disease
D) hantavirus

E) None of the above
F) A) and C)

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Question 42

Multiple Choice

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A type of white blood cell that engulfs foreign organisms is a(n)

A) antigen.
B) platelet.
C) vector cell.
D) dendritic cell.

E) A) and C)
F) B) and C)

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Question 43

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Discuss the concept of emerging infectious diseases.Identify at least three specific emerging infections and three factors contributing to disease emergence worldwide.

The fungus that causes yeast infections is called

Chemicals responsible for the dilation and increased permeability of blood vessels in the inflammatory response are called

Johnny has a red,sore throat with white patches on the tonsils,swollen lymph nodes,fever,and a headache.Which of the following bacteria caused Johnny's symptoms?

A disease in which an individual's immune system attacks his or her own body's cells is called a(n)

Two of Greg's housemates have come down with severe colds,and Greg wants to avoid contracting one if he can.Describe at least five practical steps Greg could take to help reduce the risk of catching a cold from one of his housemates.Strategies can target any part of the chain of infection.

Key components of a typical asthma attack include all of the following EXCEPT

Single-celled organisms that often cause recurrent diseases are called

A common bacterium found on the skin in healthy people but capable of causing infection if it enters the body is

Malaria can cause anemia.

Lynette has begun feeling feverish and has a sore throat.Which phase of the immune response is she experiencing?

If an individual has active organisms replicating in his or her body,he or she may be contagious before experiencing any symptoms.

An infection that travels throughout the body is called

Common allergens include dust mites,mold,mildew,and insect stings.

The body's first line of defense against the invasion of organisms is

List and describe the function of five of the many different types of white blood cells,proteins,and chemicals involved in the immune response to a pathogen.

Which of the following statements about tuberculosis is NOT true?

Vessels and organs that pick up excess fluids,filter out disease-causing organisms and other waste products,and return cleansed fluid to general circulation belong to the ______ system.