Immune System Basics
This body system protects you from germs and disease.
What is the Immune System?
Tiny living or non-living things that can make you sick.
What are germs?
The body's first line of defense.
What is the skin?
These special cells help fight germs.
What are white blood cells?
You get a paper cut and the area becomes red and swollen. What is happening?
What is inflammation?
The immune system's main job is to do this.
What is protect the body from illness?
A germ that causes disease.
What is a pathogen?
This sticky substance in your nose traps germs before they enter the body.
What is mucus?
White blood cells identify and do this to pathogens.
What is destroy/attack them?
You have the flu and your temperature rises above normal. What is happening?
What is a fever?
This happens when your body successfully fights off an infection.
What is healing/recovery?
These are 3 common types of pathogens.
What are bacteria, viruses and fungi?
These help protect the body by washing away/flushing out germs?
What are tears?
When you have an infection, your body may produce more of these.
What are white blood cells?
Sarah steps on a rusty nail. A few days later, what would gather around the wound to fight bacteria?
What are white blood cells?
The immune system works closely with this system because white blood cells travel through it (along with red blood cells and platelets).
What is the circulatory system?
A pathogen enters your body through a cut. This is the first body defense that has been broken.
What is the skin?
This powerful liquid in your stomach helps destroy many pathogens.
What is stomach acid?
These proteins help white blood cells recognize specific germs.
What are antibodies?
Alex receives a vaccine. Later he is exposed to the disease but does not get very sick. What happened?
What is immunity?
Scientists often describe the immune system as an army because it does this.
What is defend the body against invaders?
Unlike bacteria, viruses need this to reproduce.
What is a host cell/living cell?
What is the scientific term for something many people are waxing for aesthetic reasons, but work as a body defense?
What is cilia (nose hair)?
Name 2 types of white blood cells.
What are B cells and T cells (lymphocytes)?
You sneeze after dust enters your nose. What is happening?
What is a body defense removing unwanted particles?