Lymphatic basics
What is the name of the system that watches over you and fights for you if an enemy invades your body?
The Lymphatic system
This pathogen (invader) can sometimes be good and even lives on your skin and in your digestive system.
Bacteria
Where does the liquid in the lymphatic system come from?
What does innate immunity mean?
Defenses that are working to protect your body all the time.
Sometimes antibodies overreact and grab onto things that aren't harmful. What does this cause?
What word do scientists use for germs and invaders?
Pathogens
This pathogen (invader) is only a problem if there's too much of it.
Fungi
What is one of the things lymph nodes do?
Filter the liquid and make white blood cells.
What is the complement system?
The second line of defense.
Someone gets bit by a dog and gets an injection of antibodies. Is this an example of passive or acquired immunity?
If an infection is only in one area of the body, what kind of infection is it?
Localized infection
You can get this pathogen (invader) if you eat dirty or rotten food.
Worms
What does the spleen do?
Filters blood
Your complement system is made up mostly of proteins made in the liver. Usually they don't do anything except when they come in contact with an invader and then what do they do?
Pole holes in the invader and tell the white blood cells.
Someone gets chicken pox and fights it off. They now have antibodies against chicken pox and won't get it again. Is this an example of passive or acquired immunity?
Acquired immunity.
If an infection spreads throughout the body, what kind of infection is it?
Systemic infection
This pathogen (invader) is not alive.
Virus
What is the thymus?
Boot camp for white blood cells.
Flags
What do vaccines do?
They inject killed or weakened pathogens, so your body can make antibodies to fight it.
The lymphatic system has what flowing through it?
Liquid
This pathogen (invader) happens when DNA is not copied correctly.
Cancer
There are some special white blood cells that can remember invaders and can recognize them. Name one of them.
B or T cells.
What are antibodies?
Special proteins that will grab specific antigens.
What do antibiotics do?
They kill bacteria.