Exam 43: The Immune System

Which of the following statements is not true?

If a person is prone to allergies, what treatment could redirect their immune response to help prevent future allergic reactions?

Vertebrate immune cells, which are phagocytic, include ________. I neutrophils II macrophages III dendritic cells IV natural killer cells

Lymphocytes mature in the ________. I spleen II thymus III bone marrow

A boy falls while riding his bike. A scrape on his hand almost immediately begins to bleed and becomes red, warm, and swollen. What response is occurring?

________ is a characteristic of adaptive immunity but not innate immunity.

An individual who has been bitten by a poisonous snake that has a fast-acting toxin would likely benefit from ________.

T cells of the immune system include ________.

Phagocytosis of microbes by macrophages is enhanced by ________. I the binding of antibodies to the surface of microbes II antibody-mediated opsonization of microbes III the release of cytokines by activated B cells

Immunological memory accounts for ________.

________ are cells of the mammalian innate immune response that help destroy tumors.

What major advantage is conveyed by having a system of adaptive immunity?

Which of the following statements are fundamental to the clonal selection theory of how the adaptive immune system functions? I Each lymphocyte has a unique membrane receptor that recognizes one antigen. II When the lymphocyte binds an antigen, it is activated and begins dividing to form many identical copies of itself. III Cloned lymphocytes have slight differences and are selected by the spleen for removal if they do not bind an antigen. IV Cloned cells descend from an activated lymphocyte and persist even after the pathogen is eliminated.

The cells and signaling molecules involved in the initial stages of the inflammatory response are ________.

B cells interacting with helper T cells are stimulated to differentiate when ________.

Bacteria entering the body through a small cut in the skin ________.

Mucus occurs in both the respiratory and digestive tracts. What is its main immunological function?

What type of immunity is associated with breast feeding?

Which statement best describes the difference between responses of effector B cells (plasma cells)and those of cytotoxic T cells?

A newborn who is accidentally given a drug that destroys the thymus would most likely ________.