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

Structure and Function of the Immune System Lesson 1

Do Now Brain Pop Video Immune System Multiple Choice worksheet

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.

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

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

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

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

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

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

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

In class assignment Complete multiple choice and vocab worksheet

Homework Practice questions

HIV Lesson 2

Do Now Brain Pop video Antibiotic resistance

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

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

In class assignment HIV Coloring

Homework Complete Truth or Myth Worksheet

HIV LAB Lesson 3

In class assignment HIV Lab

Homework Practice Regents Questions

Operation Antibody Lesson 5

In class assignment Operation Antibody