17.3

Front 1

The hummoral immune response depends on which cells

Back 1

B and TH cells

Front 2

The fact that the body does not normally mount an immune response to the molecules in food is an example of

Back 2

Immune tolerance

Front 3

Foreign particles circulating in the blood are filtered by the

Back 3

Spleen

Front 4

Active immunity

Back 4

An immunity that occurs as a result of the activity of the body's own cells rather than from antibodies acquired from an external source

Front 5

Adaptive immunity

Back 5

A specific immune response that occurs after exposure to an antigen either from a pathogen or a vaccination

Front 6

Antibody

Back 6

A protein that is produced by plasma cells after stimulation by an antigen; also known as an immunoglobulin

Front 7

Antigen

Back 7

A macromolecule that reacts with cells of the immune system and which may or may not have a stimulatory effect

Front 8

Antigen-presenting cell APC

Back 8

An immune cell that detects, engulfs, and informs the adaptive immune response about an infection by presenting the processed antigen on its cell surface

Front 9

B cell

Back 9

A lymphocyte that matures in the bone marrow

Front 10

Cell mediated immune response

Back 10

An adaptive immune response that is controlled by T cells

Front 11

Cytotoxic T lymphocyte Tc

Back 11

An adaptive immune cell that directly kills infected cells via enzymes, and that releases cytokines to enhance the immune response

Front 12

Dendritic cell

Back 12

An immune cell that processes antigen material and presents it on the surface of its cell in MHC class II molecules and induces an immune response in other cells

Front 13

Effector cell

Back 13

A lymphocyte that has differentiated, such as a B cell, plasma cell, or cytotoxic T cell

Front 14

Helper T lymphocyte Th

Back 14

A cell of the adaptive immune system that binds APCs via MHC class II molecules and stimulates B cells or secretes cytokines to initiate the immune response

Front 15

Humoral immune response

Back 15

The adaptive immune response that is controlled by activated B cells and antibodies

Front 16

Immune tolerance

Back 16

An acquired ability to prevent an unnecessary or harmful immune response to a detected foreign body known not to cause disease

Front 17

Lymph

Back 17

The watery fluid present in the lymphatic circulatory system that bathes tissue and organs with protective white blood cells and does not contain erythrocytes

Front 18

Memory cell

Back 18

An antigen specific B or T lymphocyte that does not differentiate into an effector cell during the primary immune response but that can immediately become and effector cell on reexposure to the same pathogen

Front 19

Major histocompatibility class MHC II molecule

Back 19

A protein found on the surface of antigen presenting cells that signals to immune cells whether the cell is normal or is infected or cancerous; it provides the appropriate template into which antigens can be loaded for recognition by lymphocytes

Front 20

Passive immunity

Back 20

An immunity that does not result from the activity of the body's own immune cells but by transfer of antibodies from one individual to another

Front 21

Primary immune response

Back 21

The response of the adaptive immune system to the first exposure to an antigen

Front 22

Secondary immune response

Back 22

The response of the adaptive immune system to a second or later exposure to an antigen mediated by memory cells

Front 23

T cell

Back 23

A lymphocyte that matures in the thymus gland