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Pathophysiology Chapter 5 - Inflammation and Healing
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What is Phagocytosis?
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The process by which neutrophils (a leukocyte) and macrophages randomly engulf and destroy bacteria, cell debris, or foreign matter.
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Terms in this set (78)
What is Phagocytosis?
The process by which neutrophils (a leukocyte) and macrophages randomly engulf and destroy bacteria, cell debris, or foreign matter.
What are Interferons?
Nonspecific agents that protect uninfected cells against viruses.
What is the first line defense used by the body to protect itself from any injurious agent?
Skin or mucous membrane with blocks entry of bacteria or harmful substances into the tissues. (Mechanical barrier)
Out of the three lines of body defense which are nonspecific and which are specific?
First and second: Non- specific
Third: specific
What is the Second line of defense?
Non-specific process of phagocytosis and inflammation
Interferons occur in what line of defense?
Second line of defense
What is the Third line of defense?
Specific defense which provides protection by stimulating the production of unique antibodies or sensitized lymphocytes following exposure to specific substances.
What is Inflammation?
Normal defense mechanism in the body that is intended to localize and remove an injurious agent. (Non specific response to tissue injury)
What are the five signs of inflammation?
Redness
Swelling
Warmth
Pain
Loss of function
What are the causes of inflammation?
Direct physical damage (cut or sprain)
Caustic chemicals
Ischemia or infarction
Allergic reactions
Extremes of heat or cold
Foreign bodies
Infection
