Immune lymph 2 Flashcards
(55 cards)
______ is the ability of the body to fight off disease
Resistance
_______ is the inability of the body to fight off disease
Susceptibility
_______ are disease producing organisms such as bacteria, viruses and parasites
Pathogens
_______ the capacity of a pathogen to cause disease. That is, the more virulent, the greater the potential to make a person sick.
Virulence
_______ general responses to prevent invasion by a wide range of pathogens
Non-Specific Resistance to Disease
also called_________ ie. present at birth
Innate Immunity
________generation of antibodies (plasma cells) or cells (cytotoxic t-cells) that are specific to one pathogen
Specific Resistance to Disease
Specific Resistance to Disease also called _______
Adaptive or Acquired Immunity
_______are broad spectrum, defending against a variety of microbes, dust, chemicals etc.
first line defenses
Skin and Mucous Membranes, Fluids, Chemicals are all ____
first line defences
______ breaks down bacterial cell walls – also present in saliva, perspiration, nasal secretions, and tissue fluids
Lysozyme
These _______ are broad spectrum, defending against a variety of microbes
internal defenses
Antimicrobial Substances, Interferons, Antimicrobial Substances, Complement, Natural Killer (NK) cells, Phagocytosis, Neutrophils, Macrophages are all examples of _____
Second Line Defenses
______ arise from monocytes found in the blood which migrate to the infected areas and mature (lifespan of 1-3 weeks)
wandering macrophages
_______ stand guard in the skin, subcutaneous layer, liver, lungs, spleen, lymph nodes, bone marrow
fixed macrophages
Lyse cell walls of certain microbes via _____
membrane attack complex
Attract leukocytes to the site of invasion – _______
chemotaxis
Coat the surface of the microbe with opsonins, thereby making it recognizable to neutrophils and macrophages which will phagocytize it
process is called _______
opsonization
______first to arrive at the site of invasion
short-lived (1-5 days), but are continually being replaced
Neutrophils:
________arise from monocytes found in the blood which migrate to the infected areas and mature (lifespan of 1-3 weeks)
wandering macrophages
________stand guard in the skin, subcutaneous layer, liver, lungs, spleen, lymph nodes, bone marrow
fixed macrophages
phagosome merges with a lysosome to form a _______
phagolysosome
_____ is usually a localized response to tissue damage which can occur when bacteria invade tissues
Inflammation
redness, heat, swelling, pain
inflammation