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The body's three lines of defense against a pathogen (germ) are:
1. Anatomical and physiological barriers-Includes skin, hair, mucous membranes, saliva, tears, stomach acid, pH, temperature.
2. Non-specific response-Includes phagocytosis of pathogen, inflammation of tissues, vasodilation (increased blood flow to area), and swelling.
3. Specific response-antibody production and cell mediated immunity to particular pathogen. Maintained indefinitely.
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Professor
Judy
MaxineThe first line of defense, which includes physical barriers like skin and mucous membranes, acts as a physical and chemical barrier to prevent pathogens from entering the body. These barriers provide a primary defense by blocking the entry of pathogens, trapping them in mucus, and preventing straightforward access to the internal environment where they could cause harm.
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True or false The skin provides the first defense against invasion by pathogens?
True. The skin acts as a physical barrier and provides the first line of defense against invasion by pathogens, preventing them from entering the body.
The first line of defense during a phlebotomy procedure?
The first line of defense during a phlebotomy procedure is strict adherence to aseptic technique, which involves thorough handwashing and the use of gloves. This helps prevent the introduction of pathogens into the bloodstream.
When does the bodys second line of defense come into play?
The body's second line of defense, which includes inflammatory responses and phagocytic cells, comes into play when pathogens manage to breach the first line of defense (skin and mucous membranes). These responses help contain and eliminate the pathogens before they can cause harm.
What is the main line of defense?
The main line of defense in the human body is the immune system, which helps to protect against pathogens such as bacteria, viruses, and parasites. This includes physical barriers like the skin, as well as specialized cells and proteins that work together to identify and neutralize harmful invaders.
What is the first line of Mitch's non-specific defenses?
The first line of Mitch's non-specific defenses is the physical barriers provided by the skin and mucous membranes. These barriers serve as the body's first line of defense against pathogens by preventing their entry into the body.
