Chapter 17 Flashcards
Microorganisms
living plants or animals that can’t be seen without a microscope
What are some common types of microorganisms?
bacteria, viruses, protozoa, fungi, animal parasites
Nonpathogens
microorganisms that don’t cause harm or disease
Pathogens
harm or diseases causing microorganisms
Medical asepsis
object or area is clean and free from pathogens
What are the six key elements for a microorganism to thrive?
- Proper nutrition
- Oxygen
- Temperature
- Darkness
- Moisture
- pH
Autotrophs
microorganisms that use on inorganic or nonliving substances for food
Heterotrophs
microorganisms that survive on organic and living substances
Aerobes
organism that need oxygen to survive
anaerobes
dont need oxygen to survive
what is the optimum growth temperature?
98.6F or 37C
Infection
condition where part of the body or full body is invaded by a pathogen
Hand hygiene
process of cleansing or sanitizing the hands
Resident flora
grows in the epidermis- deeper level of skin
usually nonpathogenic
Transient flora
grown on superficial skin layers
often pathogenic