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Questions and Answers
Which type of immunity develops slowly?
Which type of immunity involves leukocytes, defensins, complement, lysozyme, and interferons?
Which type of immunity produces memory cells that permit a rapid response upon re-exposure to the same specific microbe?
Which are the primary lymphoid organs?
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Which are the secondary lymphoid organs?
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Which physical barriers prevent infections or penetration of the host body?
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Which cells remove bacteria, fungi, and parasites that do get through the barriers?
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Which receptors on leukocytes allow recognition and binding of invaders?
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Which cells destroy unhealthy host cells?
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Which cells become activated against specific invaders?
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Which of the following is NOT a role of cytokines in immune responses?
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Which of the following is a characteristic of cytokines?
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Which type of immune cells do cytokines primarily coordinate?
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Study Notes
Immunity Types
- Adaptive immunity develops slowly and produces memory cells that permit a rapid response upon re-exposure to the same specific microbe.
- Innate immunity involves leukocytes, defensins, complement, lysozyme, and interferons.
Lymphoid Organs
- Primary lymphoid organs: bone marrow, thymus
- Secondary lymphoid organs: spleen, lymph nodes, lymphoid tissues associated with mucosal surfaces
Physical Barriers and Phagocytosis
- Physical barriers: skin, mucous membranes, epithelial linings; prevent infections or penetration of the host body
- Cells that remove bacteria, fungi, and parasites: phagocytic cells, such as neutrophils and macrophages
Recognition and Binding
- Receptors on leukocytes: Pattern Recognition Receptors (PRRs), allow recognition and binding of invaders
Cell Functions
- Cells that destroy unhealthy host cells: cytotoxic cells (e.g., cytotoxic T cells, natural killer cells)
- Cells that become activated against specific invaders: T cells (e.g., CD4+, CD8+)
Cytokines
- Roles in immune responses: coordinate immune response, stimulate immune cell activation and differentiation, and regulate the intensity and duration of immune responses
- NOT a role of cytokines: structural barrier function
- Characteristic of cytokines: pleiotropy (one cytokine affects multiple cell types)
- Cells primarily coordinated by cytokines: immune cells, such as T cells and macrophages
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Description
Test your knowledge of innate and adaptive immunity with this quiz! Learn about the key components of innate immunity and how it differs from adaptive immunity. Explore the roles of leukocytes, defensins, complement, lysozyme, and interferons in innate immunity. Discover how adaptive immunity develops and produces memory cells for rapid responses to specific microbes.
