NUR 631 Quiz 2

NUR 631 Quiz 2
1. 1.What isthe first line of defense? Name 2-3 examples
Answer
Quick,skin, destroys blocks reduces
Skin, macrophages, goblet cells
2. 1. What's the difference between antigen and pathogen?
Answer
Antigens are part of the immune system that ID pathogens and mark them for future
identification
3. Who is the first to arrive on scene to deal with the pathogen?
Answer
macrophages
4. 1. What is Antigen Presenting Cell? Name 2 example of APC.What do they do?
Answer
These specialized populations initiate adaptive immune responses by presenting antigens
captured from the environment to B and T lymphocytes.
5. 1. What is the process of activatingT-cells and B-cells, and making replica- tion of theTcells and B-cells?
Answer
During T cell-dependent activation, B cells absorb the antigen and then present pieces of the
antigen on their surface via a major histocompatibility complex (MHC).HelperT cells can then
recognize those antigens via the MHC and activate the B cells.
6. 1. What is the name of activated B-cell?
Answer
Once B-cells are activated, they become plasma cells that produce antibodies in response to an
antigen. Or they become memory cells that remember the antigen so your immune system can
quickly identify and fight it in the future.