1. Ch. 40 The Immune Systemand Disease By: Vicky Leung & Yilin Ye

2. Infectious Disease

Disease - any change other than an injury, that disrupt the normal function of the body.

Yilin 3. Pathogens & Diseases Bacteria Virus Protist / Fungi Worm - cold, chicken pox - airborne; direct contact with infected person

tuberculosis, tetanus

- fog, direct conact with a carrier, drinking water

malaria, amoebic dysentery

- spread by tsetse fly, shower stall

Schistosomiasis, beef tapeworm

- freshwater streams and rice paddies, contaminated meat

Yilin 4. The Immune System

Skin --->

the most important nonspecific defense of your body.

Yilin Inflammatory Response- 2nd line of defense; nonspecific reaction to tissue damage causing by injury or infection. 5. Humoral Disease

The immune system produces specific antibodies that blind to antigens on the surface of pathogens.

Yilin 6. Allergies

The most common overreaction of the immune system are known as allergies. Allergies result when antigens from allergies, such as the figures to your right.

Vicky 7. Autoimmune System

When the immune system make a mistake and attack the bodys own cells, it produces an autoimmune system

Vicky 8. Cancer

Cancer begins when something goes wrong with the controls that normally regulate cell growth and division.

Vicky 9. Ways of Treating Cancer

Chemotherapy

Radiation

Surgery

Vicky