1. lymphocytes attacking cancer cell lymph system
Aim: “Fighting the Enemy Within”
lymphocytes
attacking
cancer cell
lymph
system

2. Diseases of the immune system
HIV: Human Immunodeficiency Virus
Infects helper T cells
Helper T cells can’t activate rest of immune system
Body doesn’t hear the alarm
T-cell
HIV

3. 2) AIDS: Acquired ImmunoDeficiency Syndrome
infections by opportunistic diseases
death usually from other invading diseases or cancer

4. Auto-immune diseases immune system attacks own cells 1) Lupus
Your immune system attacks healthy cells and tissues by mistake
2) Diabetes
high levels of sugar in the blood because pancreas not working
Don’t have chemicals needed for digestion

5. 3) Rheumatoid arthritis antibodies causing damage to cartilage & bone
4) Multiple sclerosis
T cells attack brain & spinal cord nerves

6. 5.Fibromyalgia
causes chronic pain and fatigue throughout the body. Heightened sensations to touch.

7. Leukemia
Cancer of the blood cells

8. Immune system malfunctions
Allergies
over-reaction to harmless compounds
allergens
proteins on pollen, dust mites, animal saliva
body mistakenly thinks they are attackers

9. Protecting you from disease
Antibiotics = medicine
Advantage
kill bacteria that have successfully invaded you
make you well after being sick

10. Disadvantage
use only after sick
only good against bacteria
possible development of resistance by bacteria (if don’t use correctly)
can get sick again

11. Transfusions The body can reject a transfusion.
Immune system attacks it thinking it is a foreign invader.

12. Allergies
Allergens are antibodies that cause an excessive activation of white blood cells
***Anaphylactic Shock
* can cause death

13. Histamines
A neurotransmitter that increases the release of white blood cells.
*brings about sinus like symptoms

14. Antihistamines Inhibit the release of histamine
Examples: Zyrtec, Claritin, Nasonex

15. Transplant Organs
Body will reject foreign tissues causing the immune system to attack the organ.
Patients are put on immunosupressants.

16. Blood Type antigens & antibodies Universal Donor – Type O
Universal Acceptor – Type AB

17. RECIPIENT DONOR Blood donation clotting clotting clotting clotting

18. Blood type A B AB O Who can they Receive Blood from? blood type A, O
universal recipient O
universal donor
Matching compatible blood groups is critical for blood transfusions