Exam 1: Elements of the Immune System and Their Roles in Defense

A.Identify the two major progenitor subsets of leukocytes. B.Where do they originate in adults? C.Name the white blood cells that differentiate from these two progenitor lineages.

Which of the following is not associated with mucosal surfaces?

The first line of defense against microorganisms that infect the body is referred to as _____.

_____ cells persist long after an individual has been vaccinated.

The thin layer of cells that makes up the interior lining of the blood vessels is called the _____.

A bacterium that causes a common disease in a population that has been previously exposed to it is called _____.

_____ act as cellular messengers by delivering degraded pathogens to lymphoid organs.

An example of an antimicrobial peptide that protects epithelial surfaces from pathogens is _____.

Examples of granulocytes include all of the following except:

Which of the following pairs is mismatched?

What are clonal selection and clonal expansion in the context of an adaptive immune response? Describe how they shape the adaptive immune response.

The last cases of smallpox were reported in the _____.

Primary lymphoid tissues are the sites where lymphocytes _______,whereas secondary lymphoid tissues are the sites where lymphocytes _______.

The _____ is (are)the lymphoid organ(s)that filter(s)the blood.

Phagocytosis of either microbes or microbial constituents by macrophages is followed by the activation of macrophages and the secretion of cytokines.What are the main effects of these molecules?

Describe the characteristics commonly associated with inflammation and what causes them.

Identify the incorrect statement regarding hematopoiesis.

Why does it take approximately a week after infection for the benefits of an adaptive immune response to start to be felt?

The spleen differs from other secondary lymphoid organs in which of the following ways?

Which of the following statements regarding neutrophils is false?