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T Cells and Cellular Immunity
27
Microbiology
Undergraduate 3
04/24/2012

Additional Microbiology Flashcards

 


 

Cards

Term
These lymphocytes make up 65% in the body:
Definition
T Cells
Term
These lymphocytes make up 35% in the body:
Definition
B Cells
Term
Can you tell the difference between T Cells and B Cells under a compound microscope?
Definition
No
Term
This is located behind the sternum:
Definition
Thymus
Term
These are produced by stem cells in red bone marrow and mature in the thymus:
Definition
T Cells
Term
T Cells respond to __
Definition
Antigens (Ag)
Term
Antigens cause certain types of T Cells to proliferate and secrete __
Definition
Cytokines
Term
These are chemical messengers:
Definition
Cytokines
Term
These are large phagocytic cells:
Definition
Macrophages
Term
T Cells turn on a switch to make __
Definition
B Cells
Term
Name the three types of T Cells:
Definition
  1. T Helper Cells
  2. Regulatory T Cells
  3. Cytotoxic Cells

 

Term
T Helpers Cells (TH)=
Definition
CD4 Cells
Term
T Helper Cells activate B Cells to make __ and macrophages
Definition
Antibodies (Ab)
Term
Regulatory T Cells=
Definition
CD8 Cells
Term
T Helper Cells secrete:
Definition
Cytokines
Term
Regulatory T Cells suppress or __ other T Cells
Definition
Turn off
Term
Cytotoxic Cells=
Definition
CD8 Cells
Term

These are natural killer cells:

 

Definition
Cytotoxic Cells (Tc)
Term
Cytotoxic Cells recognize and kill target cells that are __
Definition
Non-self
Term
Name three types of non-self cells:
Definition
  1. Hijacked Cells (Taken over by a virus)
  2. Tumor Cells
    3. Transplanted foreign tissue
Term
Cytotoxic Cells experience programmed cell death also known as:
Definition
Apoptosis
Term
T Cells __ make antibodies
Definition
Do not
Term
B Cells __ make antibodies
Definition
Do
Term
These are chemical messengers of immune cells:
Definition
Cytokines
Term
These are also known as interleukins, interferon and tumor necrosis factor (TBF):
Definition
Cytokines
Term
Cytokines attract __ and protect against __ infections
Definition
  1. Macrophages
  2. Viral
Term
Cytokines are toxic to __ and increase __ production
Definition
  1. Tumor Cells
  2. Antibody (Ab)
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