NonSpecific Defenses Flashcards
(20 cards)
Nonspecific response the body makes to tissue damage or infection
Inflammatory Response
White blood cell produced by bone marrow to fight infections
Leukocyte
Epithelial tissue that produces mucus and lines inner body surfaces
Mucous membrane
Disease-causing agent
Pathogen
Four types of pathogens
Bacterium, virus, fungus, protozoan
Slimy substance that traps pathogens, particles and debris
mucous
Process of leukocytes engulfing/breaking down pathogens/debris
Phagocytosis
The kind of barrier that physically blocks pathogens from entering the body.
Mechanical barrier.
Most important mechanical barrier
Skin
Organisms without a nucleus
Bacteria
Organisms with a nucleus and single-celled.
Protozoa
Pathogens that reproduce by taking over living cells
Viruses
Contained in sweat, mucus, tears and saliva that kill pathogens
Enzymes
Stomach juice that kills pathogens
Stomach acid
A type of barrier that is a living organism (e.g., harmless bacteria) that helps protect the body.
Biological barrier
Three signs of inflammatory response
Redness, swelling, warmth
Two chemicals that trigger inflammatory response.
Cytokines and histamines.
Two chemicals released when tissue is injured/infected.
Cytokines and histamines.
Example of nonspecific defense.
Phagocytosis (the process of leukocytes engulfing and breaking down pathogens/debris).
Three barriers that keep out pathogens first.
Mechanical barrier, chemical barrier, and biological barrier.
