Exam 17: Immunity and Infection

Microscopic hair-like structures that sweep foreign substances out of the lungs are called

Histamine production may cause congestion and sneezing.

Lymphocytes that stimulate other lymphocytes to increase are called ______ cells.

Influenza is highly contagious and spread via

Most contagious diseases are caused by

Lyme disease can cause all of the following EXCEPT

Viral encephalitis causes inflammation of the tissue in the

A severe worldwide outbreak of a disease is called an epidemic.

T and B cells help preserve the memory of certain pathogens in a(n)______ immune response.

__________ is a disease that may have first infected humans who consumed certain species of infected wildlife.

Lymphocytes that can get rid of cells of the body that have been invaded by foreign organisms are called

When the body responds to a relatively harmless substance as if it were a dangerous pathogen and mounts an immune response,this response is called

A person who is exposed to a disease and is subsequently injected with antibodies produced by others has been given

Antibodies have complementary surface markers that work with ______ like a lock and key.

Colds are almost always transmitted by

A microorganism that causes disease is a(n)

T cells and B cells are the main types of

List the six general classes of pathogens;give at least one example of a disease caused by each type of pathogen.

Lymphocytes that produce antibodies are called ______ cells.

Define "allergy" and briefly explain how an allergic response occurs.List at least three common allergens and two strategies for dealing with allergies.