Unit 5:2
By. Mrs. Ngawaka
True or False
Immune System- A network of cells, tissues,
organs, and chemicals that fight off
pathogens.
The Immune system has 3 lines ...
Physical
Skin
Cilia
Mucous Membrane

Chemical
Tears
Saliva
Gastric Juices
A reaction to tissue damage caused by injury
or infection.
Blood Vessels expand around injury to help
fight bring in phagocytes to help fight any
germs.
Swelling which causes pain f...
If the first two lines of defense are not
effective then the third line is activated.
This line of defense is activated fo...
3 Columns and 10 Rows
Antigen- Foreign substance on the pathogen that triggers the
immune system
Macrophages- “Patrol” your body and eat the pat...
“Patrol” your body and eat the pathogens. Macrophages
will invade and destroy any foreign substance as well
as old or weak...
Trigger the production of B cells and Killer T cells. They
are extremely important to the immune system. People
with AIDS ...
Memory Cells- Cells that “remember” the
antigens that have been fought off before
and how to fight them.
Active Immunity- ...
Immune System
Your _________ ________ is a network of cells,
tissues, organs, and chemicals that fight off
3
pathogens. Th...
Page 652-653
1-6
11-17,19
21-28
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
2 fighting communicable diseases
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  • Tears and Saliva contain enzymes that destroy and disable pathogens
    Mucous Membranes are in your mouth, nose, and other parts of your body. The stick substance traps pathogens before they can cause disease and are disposed of.
    Skin prevents most pathogens from entering the body.
    Cilia are small hairs that line your airways. They sweep pathogens to the throat where they can be swallowed or coughed out.
    Gastric Juices destroy pathogens that enter your body through your nose and mouth.
  • 2 fighting communicable diseases

    1. 1. Unit 5:2 By. Mrs. Ngawaka
    2. 2. True or False
    3. 3. Immune System- A network of cells, tissues, organs, and chemicals that fight off pathogens. The Immune system has 3 lines of defense 1.Physical and Chemical Barriers 2.The inflammatory Response 3.Specific Defenses
    4. 4. Physical Skin Cilia Mucous Membrane Chemical Tears Saliva Gastric Juices
    5. 5. A reaction to tissue damage caused by injury or infection.
    6. 6. Blood Vessels expand around injury to help fight bring in phagocytes to help fight any germs. Swelling which causes pain from pressure on the nerves. Puss build up from phagocytes and dead tissue. 1. 2. 3. 1. 4. Phagocytes: white blood cells that fight pathogens by surrounding and destroying them. Body repairs the tissue.
    7. 7. If the first two lines of defense are not effective then the third line is activated. This line of defense is activated for specific pathogens. Meaning the body must learn how to fight these pathogens.
    8. 8. 3 Columns and 10 Rows
    9. 9. Antigen- Foreign substance on the pathogen that triggers the immune system Macrophages- “Patrol” your body and eat the pathogens. If More help is needed then… Helper T Cells- Trigger the production of B cells and Killer T Cells. Lymphocytes- specialized white blood cells known as T cells and B cells. B Cells- Make antibodies Antibodies- A protein that binds to antigens and inactivates it or help the Macrophages eat the pathogen. T Cells- recognize infected cells and kill the cell. Suppressor T Cells- Turn off the helper T cells when the infection is cleared.
    10. 10. “Patrol” your body and eat the pathogens. Macrophages will invade and destroy any foreign substance as well as old or weakened body cells or debris. After digesting a pathogen the macrophage will present the antigen to a Helper T Cell. Which down the road will result in the production of Antibodies by B cells.
    11. 11. Trigger the production of B cells and Killer T cells. They are extremely important to the immune system. People with AIDS have a very low count of Helper T cells. You could say they sound the alarm to trigger battle. B cells make antibodies used to bind to a specific antigen. Recognize the infected cells and kill them. Will also kill their own kind so they must be stopped after the battle. Turn off helper T cells when the infection is cleared.
    12. 12. Memory Cells- Cells that “remember” the antigens that have been fought off before and how to fight them. Active Immunity- immunity that is developed from being exposed the actual pathogen. Passive Immunity- Temporary Immunity that is received from the antibodies of another animal or human.
    13. 13. Immune System Your _________ ________ is a network of cells, tissues, organs, and chemicals that fight off 3 pathogens. There are ______ lines of defense Physical in your immune system. The first is _________ Chemical and __________ barriers. The second line of defense is called The ___________ ______ _____ Inflammatory response it is a reaction to tissue damage caused by injury or infection. Each B cell is programmed Antibody to make one type of _____________, or protein that acts against a specific antigen. Found in toxins and on the surface of pathogens, ____________ are substances that Antigens can trigger an immune response. T cells and B cells are types of _____________. Lymphocytes
    14. 14. Page 652-653 1-6 11-17,19 21-28

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