Immune System (AP)

A nonspecific response to pathogens by the immune system

A specific response by the immune system to a given pathogen

A collection of nonspecific barriers and cellular responses that serve as an inborn first and second line of defense against pathogens

A kind of passive or active immunity in which antibodies to a particular antigen are present in the body.​​​​​​

Lymphocytes that mature in bone marrow and make antibodies in response to antigens​​​​​​​

White blood cells that mature in the thymus and participate in an immune response

Microscopic organisms that live in or on the human body without causing it harm

A white blood cell secretion that triggers capillary permeability and vasodilatation

Proteins secreted by leukocytes when they are infected with viruses

A substance that kills or inhibits growth of microorganisms with minimal damage to the host

Substances on the surfaces of agents that act to identify them, to the body, as being native or foreign​​​​​​​

A cell that displays foreign antigens with major histocompatibility complexes on their surfaces

A type of lymphocyte that secretes interleukins, a protein that triggers the action of other cells, including the attack of foreign cells by the cytotoxic T cell

Cell signaling molecules released primarily by helper T cells and macrophages. Certain cytokines activate cytotoxic T cells

The category of lymphocyte that attacks foreign cells

A blood protein that counteracts a specific antigen

A lymphocyte that responds to an antigen upon reintroduction

Protection against a specific pathogen resulting from the production of antibodies in response to the presence of specific antigens

Temporary immunity gained by a body that has acquired antibodies from an outside source

A pathology that results from the immune system mistaking part of the body as a pathogen

A progressive autoimmune disease that causes joint inflammation and pain

Which of the following is a barrier that helps prevent pathogens from invading the body?​​​​​​​

A bacteria cell enters the body through a cut in the skin. Which of the following describes the immune response that would occur next?​​​​​​​

Which of the following types of cells produce antibodies?​​​​​​​