NettetAlthough we emphasized the role of soluble components of the first line of defense of innate immunity like pattern recognition proteins (surfactant proteins A and D, mannose-binding lectin and complement component 1q, C-reactive protein, innate IgM antibodies), we cannot ignore the role of cellular components of the innate immune system … NettetWhat are 3 examples of parts of the first line of defense? 1. physical barriers 2. microbiota barrier 3. chemical barriers What are 4 examples of parts of the second line of defense? 1. Phagocytosis 2. Inflammation 3. Fever 4. Complement cascade What are 2 examples of parts of the third line of defense? 1. B cells 2. T cells
Ch. 17 Summary - Microbiology OpenStax
NettetThe nonspecific innate immune response provides a first line of defense that can often prevent infections from gaining a solid foothold in the body. These defenses are described as nonspecific because they do not target any specific pathogen; rather, they defend against a wide range of potential pathogens. NettetThird-Line Defenses - Sometimes the second line of defense is still not enough and the pathogen is then heading for the body's last line of defense, the immune system. The immune system recognizes, attacks, destroys, and remembers each pathogen that enters the body. It does this by making specialized cells and antibodies that render the tracfone minutes how to add
Innate immunity (article) Immune system Khan Academy
NettetA dark, shadowy figure stealthily makes its way through a well-fortified house, successfully sidestepping traps, inactivating alarms, and taking down every guard that it encounters. This may sound like a typical scene from any ninja movie, but a similar scenario occurs whenever a bacterial pathogen successfully enters and infects our bodies. NettetFirst Line of Defense. Skin, Mucous Membranes, Secretions of skin. Second Line of Defense. phagocytic leukocytes, antimicrobial proteins, inflammatory response, fever. … Nettet17.2 Chemical Defenses Numerous chemical mediators produced endogenously and exogenously exhibit nonspecific antimicrobial functions. Many chemical mediators are … therms to mw