1. IMMUNE SYSTEM
What does it do? – Fights disease

2. NONSPECIFIC RESPONSE
Nonspecific Defense– attempts to get rid of all infections
Physical barriers – A. skin
B. mucous
C. sweat, saliva, tears

3. NONSPECIFIC RESPONSE
Cells – Macrophages (WBC’s) eat viruses and bacteria; phagocytosis
Inflammatory Response – body temperature rises

4. SPECIFIC RESPONSE
Specific Defense – Attempts to get rid of individual types of infections

5. SPECIFIC RESPONSE VIDEO SUMMARY OF SPECIFIC RESPONSE
use “Interaction of Antigen Presenting Cells and T-helper Cells”
then “Cytotoxic T-cell Activity Against Target Cells (441.0K)”
VIDEO SUMMARY OF SPECIFIC RESPONSE
use “Interaction of Antigen Presenting Cells and T-helper Cells”
then “Cytotoxic T-cell Activity Against Target Cells (441.0K)”

6. SPECIFIC RESPONSE
Step one – Dendritic cells display virus parts to immunity cells; looking for a correct match
Step two – Correct T-cell is found
Step three – T-cells reproduce and kill infected cells

7. SPECIFIC RESPONSE Step four – B-cells reproduce and make antibodies
Step five – Antibodies coat virus (cannot infect)
Step six – Some B-cells become memory cells

8. Memory Cells

9. VACCINES When you get a shot, you are getting: Antibodies?
B. Full strength virus?
C. “Weakened” virus?

10. VACCINES
How do vaccines work? Body is given a small amount of “weakened” virus/bacteria and memory cells are produced.
Edward Jenner; Coxpox; “vaca”

11. IMMUNE SYSTEM DISORDERS
Autoimmune diseases – Immune system is attacking you!
Arthritis – attacks tendons in joints
Juvenile Diabetes – attacks pancreas

12. IMMUNE SYSTEM DISORDERS
AIDS – HIV infects and destroys T-cells; immune system does not work
Usually die from “simple” diseases like pneumonia

13. Immune System Summary and how Influenza Vaccine is produced
video

16. IMMUNE SYSTEM DISORDERS
Allergies – Immune system is proteins from environment (bee venom, dust, pollen)
Blood pressure drops very quickly
Injection of epinephrine