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The Human Immune System
Facts (Fill In the Blank)
16
Biology
Undergraduate 1
06/18/2012

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Term
non-specific
Definition
The ____________ immune system repels invading antigens (Ag) indiscriminately, but cannot prevent disease entirely.
Term
specific
Definition
The ____________ immune system creates immune responses targeted at specific disease-causing antigens.
Term
Humoral and Cell-medicated
Definition
Two types of specific immune responses are ____________ and ____________.
Term
Antibodies (Ab)
Definition
____________ are proteins created by B-lymphocytes.
Term
Antibodies (Ab)
Definition
____________ are released into the blood stream when a particular antigen is present. Each is molecularly coded to attack one and only one antigen.
Term
Humoral
Definition
The ____________ immune response is the process in which antibodies produced by B-cells can destroy or deactivate an antigen without the presence of a B-cell.
Term
Cell-medicated
Definition
The ____________ immune response is the process in which a cytotoxic, or Killer, T-cell must be bound to a harmful antigen to destroy it.
Term
Cytokines
Definition
____________ are chemical messengers released when an infection is present. They regulate the body's immune system.
Term
Inflammatory response
Definition
The ____________, a product of the non-specific immune system, is triggered when granuloctyes release histamine. Then blood flow is increased to the infected area and attracks other white cells to fight the infection.
Term
Histamine
Definition
The inflammatory response, a product of the non-specific immune system, is triggered when granuloctyes release ____________. The inflammatory response increases blood flow to the infected area and attracts other white cells to fight the infection.
Term
Major Histocompatibility Complex (MHC)
Definition
The ____________ is a cluster of immunoglobulin molecules that distinguish cells of our body from those that are not.
Term
Antibodies (Ab)
Definition
____________ are proteins that aid the cells of our immune system in fighting off infections by specific antigens.
Term
vaccination
Definition
A ____________ is a killed or weakened form of a specific antigen injected into the body. These weakened antigens allow the body to mount a specific immune response without producing visible symptoms of the disease. This immune response gives us immunity to that specific antigen should we ever be exposed to it in the future.
Term
B-cell or B-lymphocyte
Definition
A ____________ is an antibody-producing white cell of the specific immune system. Them and their antibodies are coded to bind with one and only one antigen.
Term
Helper T-cell or T-lymphocyte
Definition
A __________ is a white cell that controls the nature and extent of all our immune responses.
Term
cytotxic or Killer T-cell
Definition
A __________ is a cell that is responsible for destroying infected, or abnormal, cells of our own bocy, such as cancer cells.
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