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23 Cards in this Set
- Front
- Back
The hummoral immune response depends on which cells |
B and TH cells |
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The fact that the body does not normally mount an immune response to the molecules in food is an example of |
Immune tolerance |
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Foreign particles circulating in the blood are filtered by the |
Spleen |
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Active immunity |
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 |
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Adaptive immunity |
A specific immune response that occurs after exposure to an antigen either from a pathogen or a vaccination |
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Antibody |
A protein that is produced by plasma cells after stimulation by an antigen; also known as an immunoglobulin |
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Antigen |
A macromolecule that reacts with cells of the immune system and which may or may not have a stimulatory effect |
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Antigen-presenting cell APC |
An immune cell that detects, engulfs, and informs the adaptive immune response about an infection by presenting the processed antigen on its cell surface |
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B cell |
A lymphocyte that matures in the bone marrow |
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Cell mediated immune response |
An adaptive immune response that is controlled by T cells |
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Cytotoxic T lymphocyte Tc |
An adaptive immune cell that directly kills infected cells via enzymes, and that releases cytokines to enhance the immune response |
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Dendritic cell |
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 |
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Effector cell |
A lymphocyte that has differentiated, such as a B cell, plasma cell, or cytotoxic T cell |
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Helper T lymphocyte Th |
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 |
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Humoral immune response |
The adaptive immune response that is controlled by activated B cells and antibodies |
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Immune tolerance |
An acquired ability to prevent an unnecessary or harmful immune response to a detected foreign body known not to cause disease |
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Lymph |
The watery fluid present in the lymphatic circulatory system that bathes tissue and organs with protective white blood cells and does not contain erythrocytes |
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Memory cell |
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 |
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Major histocompatibility class MHC II molecule |
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 |
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Passive immunity |
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 |
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Primary immune response |
The response of the adaptive immune system to the first exposure to an antigen |
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Secondary immune response |
The response of the adaptive immune system to a second or later exposure to an antigen mediated by memory cells |
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T cell |
A lymphocyte that matures in the thymus gland |