Question 1

Which of the following is NOT a major category of innate (nonspecific) immunity?

Accepted Answer

Antibody production

Question 2

A patient receives an injection of antibodies after being exposed to rabies. What type of immunity is this?

Accepted Answer

Artificially induced passive immunity

Question 3

Which cell type is responsible for immunological surveillance and the destruction of abnormal cells, such as cancer cells?

Accepted Answer

Natural killer (NK) cells

Question 4

What is the primary function of interferons in the immune response?

Accepted Answer

Trigger production of antiviral proteins that block viral replication

Question 5

Which of the following best describes the role of cytotoxic T cells?

Accepted Answer

Attack cells infected by viruses and are responsible for cell-mediated immunity

Question 6

During inflammation, which of the following is NOT a cardinal sign?

Accepted Answer

Itching

Question 7

Which process allows phagocytes to move toward sites of infection in response to chemical signals?

Accepted Answer

Chemotaxis

Question 8

What is the final result of complement activation via either the classical or alternative pathway?

Accepted Answer

Formation of the membrane attack complex (MAC) causing cell lysis

Question 9

Which of the following is a product of inflammation characterized by local tissue destruction?

Accepted Answer

Necrosis

Question 10

A newborn receives antibodies from its mother through breast milk. What type of immunity is this?

Accepted Answer

Naturally acquired passive immunity

Question 11

Which of the following is true about B cells?

Accepted Answer

They are responsible for antibody-mediated immunity

Question 12

Which class of MHC proteins is found on all nucleated cells and presents peptides to cytotoxic T cells?

Accepted Answer

Class I MHC proteins

Question 13

What is the main difference between innate and adaptive immunity?

Accepted Answer

Innate immunity is nonspecific and present at birth, while adaptive immunity is specific and develops after exposure to pathogens

Question 14

Which of the following is a function of helper T cells?

Accepted Answer

Stimulate the function of T cells and B cells

Question 15

Which of the following is a special fixed macrophage found in the central nervous system?

Accepted Answer

Microglia

Question 16

Which of the following best describes the role of fever in the immune response?

Accepted Answer

Increases body metabolism and accelerates defenses

Question 17

Which pathway of complement activation does NOT require antibodies?

Accepted Answer

Alternative pathway

Question 18

What is the role of memory T cells in adaptive immunity?

Accepted Answer

They rapidly form cytotoxic T cells if the same antigen appears again

Question 19

Which of the following is a function of the inflammatory response?

Accepted Answer

Mobilization of local and systemic defenses and facilitation of repairs

Question 20

Which of the following is a product of inflammation that consists of a mixture of debris and necrotic tissue?

Accepted Answer

Pus

The Lymphatic System and Immunity: Innate and Adaptive Defenses

Study Guide - Practice Questions