Basics
What is the immune system?
The system that protects the body from germs.
What type of germ causes illnesses like the flu and colds?
Viruses
What outer covering protects the body from germs?
Skin.
What cells travel through the bloodstream looking for invaders?
White blood cells
What should you use to clean your hands and remove germs?
Soap and water
What tiny organisms can make people sick?
Germs/Bacteria
What type of germ can live almost everywhere and sometimes causes infections?
Bacteria
What liquid in your eyes helps wash away germs?
Tears.
What proteins attach to germs to help destroy them?
Antibodies
How long should you wash your hands to remove germs well?
About 20 seconds
What type of cells travel in the blood to fight germs?
White blood cells
What is one way germs spread from person to person through the air?
Coughing or sneezing
What sticky substance in your nose traps germs?
Mucus.
What do white blood cells sometimes do to germs to destroy them?
Surround and swallow them
What healthy foods help support the immune system?
Fruits and vegetables
What does the immune system do after it fights a germ once?
It remembers it for next time.
What part of the body do many germs enter through when we breathe?
The nose
What strong acid in the stomach helps kill germs?
Stomach acid.
What special immune cells remember germs for the future?
Memory Cells
What medical shot trains the immune system to recognize germs safely?
A vaccine
What body system works together with cells, tissues, and organs to keep you healthy by fighting germs?
The immune system
What do we call it when germs enter the body and start multiplying?
An infection
What happens to the area around a cut when it becomes red and swollen?
Inflammation.
What is it called when the body temperature rises to help fight infection?
Fever
What healthy habit gives your immune system time to repair and recharge each night?
Sleep