Chapter 13 NA Flashcards
What Immune Responses fight off infection?
- blood vessels bring blood to the infection site
- White blood cells eat pathogens
- Fever, which causes the environment for the pathogens to be too hot, and die
What are Mucous Membranes?
They secrete and destroy pathogens- lines all organ systems that open to the outside of the body
What do Nonspecific Defense Mechanisms do?
They help to protect us from all infections
What is the first line of defense against infection?
Healthy skin
What is Antibodies?
specialized proteins produced by the immune system that help our bodies to fight off specific pathogens, preventing infection
What is a pathogen?
a microbe that can cause illnesses
Where do pathogens prefer to live?
In an environment that is warm, moist, dark, and with proper amounts of oxygen
Types of Microbes?
- Bacteria
- Viruses
- Fungi
- Parasites insects
- Helminth worms
- Protozoa
What is a microbe?
a living thing that cannot be seen with the naked eye
What is Specific Defense Mechanisms?
they help to protect us from certain infections
Why does our bodies produce antibodies?
following exposure to certain pathogens; the exposure may come from a previous infections with the pathogen or through a vaccination
What does antibiotics do?
it treats bacterial infections
What does antimicrobial do?
used to treat fungal and parasitic infections
What does antiviral agents do?
Used to treat viral infections
What is airborne pathogens?
pathogens that can be transmitted through the air
Examples of airborne pathogens?
-Tuberculosis
-Measles
- Chickenpox
What is oral-fecal route?
a method of transmitting an infection; occurs when feces containing a pathogen contaminate food or water, which is then consumed by another person
Examples of oral-fecal route?
-Hepatitis A
-Hepatitis E
-Vancomycin resistant enterococcus
- some types of parasitic infections
what is a bloodborne pathogen?
can be transmitted to another person through blood or other body fluids
examples of a bloodborne pathogens?
- Hepatitis B
-Hepatitis C
-Malaria
-Syphilis - Ebola
- HIV/AIDS
Body fluids that could contain a bloodborne pathogen?
- Needlesticks
- blood
-semen - vaginal secretions
-wound drainage - cerebrospinal fluid
-amniotic fluid - breast milk
What is the first step of the chain of infection?
Pathogen