Presentation is loading. Please wait.

Presentation is loading. Please wait.

The body’s prime defense against disease – causing pathogens or cancer

Similar presentations


Presentation on theme: "The body’s prime defense against disease – causing pathogens or cancer"— Presentation transcript:

1 The body’s prime defense against disease – causing pathogens or cancer
Immune System The body’s prime defense against disease – causing pathogens or cancer These have molecules on them that trigger a response of the immune system called ANTIGENS

2 Structure and Function of the Immune System
Lesson 1

3 Do Now Brain Pop Video Immune System Multiple Choice worksheet

4 Immune Response The immune system is the body's defense against infectious organisms and other invaders. Through a series of steps the immune system attacks organisms and substances that invade body systems and cause disease.

5 Antigen A substance which stimulates the production of antibodies by the immune system which will attack and destroy the foreign pathogen

6 Antibodies Type of protein Produced in response to a detected antigen
Each antibody is unique and fights of specific antigens

7 Lymphatic System Contains immune cells to protect against foreign invaders Contains nodes which filter infection

8 Transplants Sometimes the immune system attacks transplanted organs  “rejection” Immunosuppresent drugs can be taken to decrease the activity of the immune system Leaves the patient vulnerable to infection

9 Allergies Allergic reactions  response to normally harmless substances ex: dust, pollen, cats  release of histamines sneezing, hives, swelling, breathing difficulties ** can take an anti-histamine to relieve symptoms

10 Immunity Active Passive
Infection (production of antibodies which recognize a specific antigen) Immunization (vaccine) Passive Material transmission of resistance Antibody transfer

11 Make a Vaccine Obtain pathogen (polio, small pox, measles, mumps, rubella, tetanus, chicken pox, HPV) Treat to kill or weaken Inject into organism Body makes antibodies and WBC’s to attack Some WBC remain and remember pathogen  attack quickly if seen again

12 In class assignment Complete multiple choice and vocab worksheet

13 Homework Practice questions

14 HIV Lesson 2

15 Do Now Brain Pop video Antibiotic resistance

16 AIDS Acquired Immunodeficiency Syndrome
Disease of the Immune System – caused by a virus = HIV (Human Immunodeficiency virus) -- damages immune system by killing helper T-cells --Inactive for years --When activated if leaves patient unable to fight infections or cancer

17

18 Transmission of AIDS: 1. Sexual contact (body fluids) 2. Blood to blood (transfusions, IV drugs) 3. Mother to baby Over 2 Million people infected! Prevention of AIDS: 1. Abstinence 2. Condoms 3. No drugs

19

20

21 In class assignment HIV Coloring

22 Homework Complete Truth or Myth Worksheet

23 HIV LAB Lesson 3

24 In class assignment HIV Lab

25 Homework Practice Regents Questions

26 Operation Antibody Lesson 5

27 In class assignment Operation Antibody


Download ppt "The body’s prime defense against disease – causing pathogens or cancer"

Similar presentations


Ads by Google