Exam 21: The Immune System: Innate and Adaptive Body Defenses

Match the following: -First line of defense.

Anaphylactic shock is a rare but severe allergic response that may occur if the allergen enters the blood stream.

Figure 21.2 Using Figure 21.2, match the following: -Area where activated immunocompetent B and T cells recirculate.

Some immunocompetent cells will never encounter an antigen to which they can bind and therefore will never be called to service in our lifetime.

The directional movement of cells in response to chemicals is called chemotaxis.

Membrane attack complex (MAC)kills by ________.

Figure 21.1 Using Figure 21.1, match the following: -Antigen-binding site.

Clonal selection of B cells ________.

Dendritic cells and macrophages kill by ingestion and destruction of particulate matter in a process called phagocytosis.

Phagocyte mobilization involves ________.

In a case of immediate hypersensitivity the immune system responds with an allergic response on the first exposure to the allergen.

Match the following: -Innate defense system.

The redness and heat of an inflamed area are due to a local hyperemia caused by ________.

Monoclonal antibodies are used for the diagnosis of all of the following except ________.

The primary immune response ________.

Figure 21.1 Using Figure 21.1, match the following: -Constant region.

Match the following: -Adaptive defense system.

Activated T cells and macrophages release ________ to mobilize immune cells and attract other leukocytes into the area.

Which of the statements below does not describe antigens?

Vaccines work by ________.