First Line of Defense
What is the body’s largest organ that blocks germs from entering?
What is the skin?
What are the “soldiers” of the immune system called?
What are white blood cells (leukocytes)?
What does the immune system keep after fighting a germ?
What is a memory of the germ?
Where are white blood cells made?
What is bone marrow?
What body fluid in the eyes contains acids that help destroy germs?
What are tears?
What traps bacteria and viruses when you breathe?
What are mucus and nose hairs?
Which cells “chew up” invading germs?
What are phagocytes?
Why do people usually only get chickenpox once?
Because the immune system remembers it.
What small glands trap germs and help destroy them?
What are lymph nodes?
What sticky substance in the nose traps germs before they enter farther into the body?
What is mucus?
What kills most bacteria found in food?
What is stomach acid?
Which immune cells remember specific germs?
What are lymphocytes?
What is a vaccine compared to in the article?
What is a training session?
Which organ filters blood and fights infection?
What is the spleen?
What body defense hardens and blocks germs from entering to the body
What is earwax or mucus
What body fluids contain enzymes that destroy germs?
What are tears and sweat?
What is the specialized defense system called?
What is adaptive immunity?
What kind of germ is used in vaccines?
weak or inactive germ.
Where can lymph nodes commonly be found?
In the neck, armpits, and groin.
Why are the eyes, ears, and nose considered both entrances and defenses?
Because germs can enter through them, but they also have ways to trap or destroy germs.
What type of immunity is the body’s basic defense system called?
What is innate immunity?
What do phagocytes do to germs after finding them?
They engulf and digest them.
What happens if the real germ attacks after vaccination?
The immune system is ready to destroy it quickly.
What is the job of bone marrow?
To create white blood cells.
What is the ultimate goal of germs after entering a host’s body?
To multiply, spread through the host, and infect larger groups of people.