Infection and immune disorders Flashcards
Refers to the study of diseases that result from dysfunctions within the immune system
Immunopathology
The body’s specific protective response to a foreign agent or organism is called
Immunity
THE IMMUNE SYSTEM Consists of :
Bone Marrow
Lymphoid Tissues
White Blood Cells
Example of WBC
lymphocytes
B cells produce
antibodies
T cells-
recognize material as foreign
T cells must mature & activate before
they can respond!
Organ that filters old injured red blood cells where they are destroyed, storage area for lymphocytes
Spleen
Distributed throughout the body, remove foreign materials from the lymph before it enters the bloodstream
Lymph nodes
Tissues that contain immune cells that defend the body against microorganisms
Lymphoid tissues
Type of Immunity that is a non-specific response and
present at birth
Natural
Type of Immunity that is able to distinguish between friend or foe
Natural
Type of Immunity that includes physical barriers(skin, cilia) & chemical barriers(acidic gastric juices, enzymes in tears
Natural
Type of Immunity that is acquired during life not present at birth
Acquired
Type of Immunity that usually develops as a result of immunization or contracting a disease from another source
Acquired
First line of defense
Neutrophils
non specific response is also called
inflammatory response
innate
born with
Ability to spike a fever to lower rate of bacterial growth and give body enough time to attack infection
Non specific response or inflammatory reponse
Type of immunity that is slow and more specific
Acquired
Type of immunity that is developed by the person’s own body and lasts a lifetime
Active acquired
Type of immunity that is temporary and that is transmitted from another source ex. breastfeeding
Passive Acquired
Example of an artificial active acquired immunity is
immunization
Example of a natural active acquired immunity is
Exposure to infection agent
Example of a natural passive acquired immunity is
maternal antibodies aka breastfeeding
Example of an artificial passive acquired immunity is
Immunoglobulins
Terms and types of infection:
microbes on body surface, not causing response
Colonization
Terms and types of infection:
when an infection occurs after the body is already weakened by another infection
Opportunistic infection
Terms and types of infection:
Infection in previously healthy person
Primary Infection
Terms and types of infection:
Infection caused when person’s immune system is weakened.
Secondary Infection
Terms and types of infection:
Bacteria spread through blood stream
Bacteremia
Terms and types of infection:
Infections associated with healthcare delivery (hospital acquired).
Nosocomial Infection
Terms and types of infection:
Severe systemic response to infection
Sepsis
Type of WBC that ingest foreign materials, help to generate fever
Phagocytic
B lymphocytes transform themselves into plasma cells that manufacture antibodies
Humoral immune response
T lymphocytes turn into “killer T cells” & attack the pathogen
Cellular immune response
Humoral Response by B cells
Bacterial phagocytosis & lysis Anaphylaxis Allergic hay fever & asthma Immune complex disease Bacterial & some viral infections
Cellular Response T cells
Transplant rejection Delayed hypersensitivity – tuberculin reaction Graft-versus-host disease Tumor surveillance or destruction Intercellular infections Viral, fungal & Parasitic infections.