[Document title]
Immunology chapter 1-4 exam
latest
Immunology
The study of physiological mechanism humans and other
animals use to defend their bodies from invasion
Immune
- originally used to describe those who had surived a
disease and did not suffer from it when faced with it again
Infectious disease
Disease cause by micro organism
Immune system
The collection of cells and physiological mechanisms the
human body utilizes to fight infections
Vaccination , immunization
-procedure by which severe disease is prevented by prior
exposure to the infectious agent in a form that cannot
cause disease
Immunity
State of the body in which the immune system is capable
of preventing a full infection
Immunity
Induced immunity
Vaccination and immunization are used to ___________.
Edward Jenner
, Immunology
[Document title]
In 1796, _________ showed inoculation with cowpox virus
induced immunity to small pox.
Commensal microorganisms
- normally-occuring microorganisms in healthy individuals
that aid in digestion, vitamin production and prevent
colonization by disease-causing organisms
Pathogens
- any organism with the potential to cause disease
Opportunistic pathogen
- can be present in body with no ill effect, but it causes
disease when host is weakened or if allowed into a part of
the body where it is normally not present
Viruses, Bacteria, Fungi and Parasites
- four types of pathogens
Successful pathogens
- those that do not cause severe and rapidly fatal disease
in most of its host population; causes endemic diseases
physical, chemical, microbiological
- three types of host defences
mucus
- secreted defence; composed of water and mucins
mucins
- primary component of mucus; consists of heavily
glycosylated proteins