Podcast
Questions and Answers
Which type of immunity is present from birth and acts against all foreign substances?
Which type of immunity is present from birth and acts against all foreign substances?
- Passive Immunity
- Acquired Immunity
- Specific Immunity
- Natural Immunity (correct)
What are the characteristic symptoms of inflammation?
What are the characteristic symptoms of inflammation?
- Fever, chills, and fatigue
- Nausea, vomiting, and diarrhea
- Coughing, sneezing, and throat pain
- Redness, swelling, and pain (correct)
What is the role of phagocytes in the immune response?
What is the role of phagocytes in the immune response?
- To form a physical barrier to pathogens
- To produce antibodies
- To release histamines and cause inflammation
- To engulf and digest foreign particles (correct)
What triggers an immune response in the body?
What triggers an immune response in the body?
What does diapedesis refer to in the context of inflammation?
What does diapedesis refer to in the context of inflammation?
Flashcards
Infection
Infection
Multiplication of harmful microbes in a living body.
Immunity
Immunity
Body's defense against foreign invaders like microbes and toxins.
Inflammation
Inflammation
Body's local response to infection.
Phagocyte
Phagocyte
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Phagocytosis
Phagocytosis
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Study Notes
Infection
- Infection: multiplication of pathogenic microbes in living organisms
- Wound: tearing of tissues caused by injury or burns
Immunity
- Immunity: an organism's ability to combat foreign substances (like microbes, toxins)
- Innate Immunity: a defense system present from birth, combating various foreign substances equally
- Acquired Immunity: immunity developed over time after exposure to a particular microbe
Inflammation
- Inflammation: a rapid and localized response by the body in response to a broken barrier by microbes, presenting with symptoms like redness, heat, swelling, and pain.
- Diapedesis: white blood cells moving through blood vessel walls to damaged areas
- Inflammatory mediators: substances released by injured tissues to attract phagocytes
Phagocytosis
- Phagocyte: white blood cells capable of phagocytosis
- Phagocytosis: engulfing and digesting foreign particles by certain white blood cells
Antigens and Antibodies
- Antigens: foreign substances that trigger an immune response
- Antibodies: special substances produced by the immune system to target specific antigens
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