Definition Flashcards
Lymphocyte
Cells that allow the body to remember and recognise previous invaders and help the body destroy them
Antigen
Something that enters the body that isn’t recognised including splinters and viruses
Epidemic
Wide outbreak of infection in a community that effects more than one person at a time
Excrete
To get rid of waste in the body
Immunity
The body’s ability to ward of disease
Herd immunity
When people within a community gain immunity from other people in that community having immunity
Inoculation
Immunisation
Microbe
Micro organism
Normal floras
Helpful non-pathogenic microorganism
Pandemic
Epidemic over a wider spread, many different countries
Pathogen
Micro organisms with the ability to cause infection
Reservoir
An area in which pathogenic microbes reside that provides the right conditions for them to grow
Secretion
A substance that is produced by the cells in the body
Toxins
Poisons released from pathogenic microbes
Antibody
Produced by the immune system when a harmful substance is detected to fight it
Antibiotic
A medicine that fights bacterial infections
Spore
A protective coating on some bacteria that make them hard to kill at high or low temperatures
Route of entry
Where a pathogen enters the body
Source of infection
What part of the body is infected
Contamination
When something or someone becomes infected
Phagocyte
White blood cell that protects the body by ingesting pathogens or dead cells
Faeces
Bodily waste derived from ingested food
Anstiseptic
Free of contamination of micro organisms
Enzyme
Biological catalyst
Leukocyte
White blood cell
Haemaglobin
Red blood cells
