The immune system has three lines of defense to protect the body from pathogens. The first line of defense includes barriers like skin, while the second line contains white blood cells. The third line uses antigens and antibodies. The immune system interacts with the respiratory and digestive systems to help remove pathogens through coughing, sneezing, vomiting or diarrhea. It also works to maintain homeostasis by destroying pathogens and preventing disease.

1. IMMUNE SYSTEM
Joya Guntz
P5
Kuhar

2. FUNCTIONS
The immune system helps you from getting sick
 Keeps you healthy when the environment changes
 Has 3 lines of defense
 First line: skin, respiratory system, and digestive
system
 Second line: white blood cells
 Third line: antigens and antibodies


3. MAJOR PARTS/ORGANS
Skin helps prevent the pathogens from entering
your body
 If the pathogens are not destroyed then the
stomach gets rid of them through vomit, or diarrhea.
 Cilia traps the pathogens and then they go to the
upper respiratory system
 Your nose hair traps the pathogens
 White blood cells trap and destroy the pathogens


4. INTERACTIONS WITH 2 OTHER SYSTEMS
Respiratory system breathes out or coughs the
pathogens out of your system
 Cilia moves them to the upper respiratory system
 Digestive system the acids inside destroy the
pathogens from making you seriously ill
 If they are not destroyed then the digestive system
gets rid of them through vomit, or diarrhea


5. ROLE IN MAINTAINING HOMEOSTASIS

Your body destroys and help prevent pathogens

6. HEALTH/DISEASES
Diseases come from everything you touch
 You can wash your hands after you eat or go to the
bathroom
 You can also exercise and eat healthy choices
 Also you can use a tissue or handkerchief when
you sneeze or use your elbow


7. FAQ’S
Fun facts
 You can stay healthy by also brushing your teeth
everyday
 The lymphatic system also helps your immune
system
 The immune system also works with the circulatory
and the nervous system
