Question

1. Based on someone being sick or getting a immunization and then gaining resistance to that pathogen, make a graph representing a first exposure and second exposure to a foreign antigen with antibody production. Y axis should be antibody levels with X axis being time/exposures. Include which antibodies would be more prevalent and during which exposure (IgG, IgM, IgA,etc.)
2. A person has a wound and a foriegn pathogen enters the body. Create something that demonstrates how the body is going to react to this situation. Include the following items in this:
   1. MHC Class I
   2. MHC Class II
   3. B Lymphocytes
   4. T Lymphocytes
   5. Neutrophils
   6. Dendritic cells
   7. Antigen Presenting cells
   8. Mast Cells
   9. Macrophages
   10. Monocytes
   11. Natural Killer Cells
   12. Antibodies
   13. Antigen
   14. Lymph Nodes

Complement Proteins

Answer 1

Primary immune response occurs when the body encounters the specific pathogen for the first time. The IgM is the most common antibody in the primary immune response. Secondary immune response occurs when the body encounters the same specific pathogen for the second time. Here, the IgG is the most common antibody. This processes is represented in the following diagram,

When pathogens enter the body, first they are encountered by neutrophils and elicit an inflammatory response. Monocytes and macrophages come to the rescue if neutrophils fail to kill the pathogen. Antigen presenting cells like dendritic cells present the antigens to lymphocytes through MHC complexes in the lymph nodes. Natural killer cells try to destroy the antigen by secreting cytokines and activating mast cells.