immunity Flashcards
Define immunity
the body to resist a particular infection or toxin by the action of a specific antibodies or sensitized white blood cells.
What does the body non specific respond to
Respond to a range of pathogens or foreign substances
What does the body adaptive respond to
respond to a particular pathogen or foreign substance
What is autoimmune disease
when the body natural defence can’t tell the difference between own cells and foreign cells.
What is a hypersensitivity reaction
immunological response occurs in response to an antigen or allergen
The ability of our immune cells to recognise and not attack our own body cells is known as
a) self tolerance
b) memory
c) immunocompetence
d) specificity
a
What is the first line of defence in non specific resistance include:
a) antimicrobial proteins and natural killers
b) Inflammation and fever
c) Skin secretion and mucous membrane
d) Humoral and cellular immunity
c
What is the second line of defence in non specific:
a) skin secretion
b) antimicrobial proteins and natural killers
c) Humoral and cellular immunity
b
Humoral immunity have two response what are they
active
Passive
How is active immunity naturally acquired
infection
contact with pathogen
How is active imunity artificially acquired
vaccine from dead or attenuated pathogens
How is passive immunity naturally acquired
antibodies pass from mother to foetus via placenta or infant in her milk
How is passive immunity artificially acquired
Injections of immune serum
What is a autoimmune response
When the body fails to to recognise self from non self the immune system will attack its own tissue.
example of an autoimmune disease
rheumatoid arthritis
Name the two types of immunity that’s is adaptive and what cells they use
humoral immunity- B cells
Cellular immunity - t cells
what are immunocompetence
ability to be able to detect the difference between the different pathogens.
where are lymphocytes developed
red bone marrow
what happen when the B cells are stimulated by the antigen
they clone and become plasma cells that produce antibodies
What are the antigens that causes allergies called
Allergens
Do B cells and T cells responses produce memory cells.
TRUE or FALSE
TRUE
The ability of a lymphocyte to recognise its one specific antigen by binding to it
a) self tolerance
b) memory
c) immunocompetence
d) specificity
c
where are lymphocytes created
red bone marrow
Three ways the adaptive immunity is characterised
specificity
immunological memory
self and non self recognition
