Science Flashcards
What is a pathogen
A disease causing Micro organisms such as certain bacteria or viruses
What is a disease
A breakdown of part of the body or the failure of the body to work properly
What are mucous membranes
Wet sticky membranes in the mouth and nose that trap pathogen’s
What is the immune system
The body system that fights pathogen’s
What are white blood cells
The blood cells that fight pathogens
What is an anti-body
A protein made by white blood cells to fight a specific pathogen
What is H I V
Human immunodeficiency virus the virus that causes AIDS
What is aids
Acquired Immune Deficiency Syndrome is a disorder that prevents the bodies immune system from defending itself against pathogens
Name several of the body’s defenses against pathogens
Mucous membranes
Tears
Stomach acids
Ear wax
Friendly bacteria
Why is it helpful to bandage cuts
To keep germs out
How do you antibiotics fight disease
The anti-body recognizes the pathogen it was designed to fight and attaches to it making it harmless
Other types of white blood cells then eat the pathogen
How do white blood cells work against pathogens
The first step is for the white blood cells to recognize invading pathogens and they recognize the pathogen and make specific anti-bodies
How does H I V harm the immune system
It causes a I DS
What is an infection
A condition that exists when pathogens enter the body and the body reacts to them
