Questions and Answers
Which line of defense is the adaptive immune response a part of?
Third line of defense
What are some examples of mechanical barriers in our bodies?
Mucus
What is the role of sebum in the body's defense mechanism?
Secrete pathogen-inhibiting agents
What is the process of phagocytosis?
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Which line of defense includes inflammation and fever?
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What are some examples of chemical barriers in our bodies?
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Which line of defense forms a wall to protect the internal environment from foreign cells?
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What is the role of mucus in the body's defense mechanism?
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What is the role of hydrochloric acid in the body's defense mechanism?
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Which type of immune cells are responsible for phagocytosis?
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Study Notes
Lines of Defense
- The adaptive immune response is part of the specific defense line
- The innate defense line includes inflammation and fever
Mechanical Barriers
- Examples of mechanical barriers in our bodies include skin, mucous membranes, and epithelial lining of respiratory, gastrointestinal, and genitourinary tracts
Chemical Barriers
- Examples of chemical barriers in our bodies include sebum (antimicrobial properties), mucus (traps pathogens), and hydrochloric acid in stomach (kills ingested pathogens)
Phagocytosis
- Phagocytosis is the process where specialized cells engulf and digest foreign substances and pathogens
- Phagocytosis involves the ingestion of foreign particles by cells, such as neutrophils and macrophages, which are responsible for this process
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