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Immune System

QuestionAnswer
What is homeostasis? Keeping an organism's internal environment stable despite what happens in the exterior environment
What is a pathogen? An organism that causes disease
What is the function of the immune system? Protect the body from disease caused by pathogens.
What is the first layer of defense of the immune system? The skin, breathing passages, mouth and stomach
What is the second layer of defense of the immune system? The inflammatory response system, which includes your body going into a fever as well as white blood cells growing larger
What is the third and final layer of defense of the immune system? The immune response system, which includes T-cells and B-cells that fight and kill the pathogen
What do T-cells do? T-cells have 3 jobs. 1. identify pathogens 2. alert B-cells to produce antibodies 3. destroy pathogens
What do B-cells do? B-cells produce antibodies which fight the pathogen
T-cells and B-cells are specific versions of what type of cell? White blood cells. These are the strongest type of white blood cells.
How do white blood cells know they need to start fighting a pathogen? The cells that have been damaged by a pathogen leak a fluid that the white blood cells can detect. Then, the white blood cells know that they need to go fight the pathogen.
How does a fever help your body fight pathogens? Pathogens have a hard time surviving and reproducing in higher temperatures.
Created by: tcscanderson
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