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BIOS 255 Final Exam 2
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BIOS 255 Final Exam 2
- What are the 2 type of immune response?
Answer: Innate Immunity and Adaptive Immunity
- Which lines of defense make up innate immunity?
Answer: 1st and 2nd line of defense
- Innate Immunity characteristics
Answer:
Non-specific resistance Present at birth 1st & 2nd line of defense
- What is the 1st line of defense?
Answer: Skin & Mucous Membranes
- What is the 2nd line of defense?
Answer: Internal Defenses
- The 1st line of defense is made up of what 2 types?
Answer: Mechanical Defense & Chemical Defense
- What are the mechanical defenses in innate immunity
Answer: skin mucous membranes
tears saliva mucus cillia epiglottis urine defecating vomiting
- What are the chemical defenses in innate immunity
Answer:
sebum lysozyme gastric juices
- What makes up the internal defenses of innate immunity
Answer:
antimicrobial proteins natural killer cells Fever Phagocytes Inflammation Complement system Interferons (IFN)
- steps of phagocytosis
Answer:
chemotaxis 2 / 3
Adherence Ingestion Digestion killing
- What happens in inflammation?
Answer:
redness/pain/heat/swelling Vasodilation & increase permeability of blood vessels
phagocytes migrate from blood to injury PRISH
- What do interferons do?
Answer: protect the uninfected host cell from viral infection
- adaptive immunity definition
Answer: ability of body to defend itself against specific invading agents
- adaptive immunity characteristics
Answer: Specific immunity has both specificity and memory
- types
- what are the 2 types of adaptive immunity
Answer: cell mediated and antibody mediated
- What is Cell Mediated Immunity
Answer: Specific immunity that only uses T cells
- antibody-mediated immunity
Answer: produces antibody B cells in response to anti- gen. Either works alone or with Helper T cells (humoral)
- Immunogenicity
Answer: ability to provoke immune response
- Reactivity
Answer: ability of antigen to react specifically to antibody it provokes
- What are epitopes?
Answer: receptors on B & T cells Binding site
- B Cells in antigen processing
Answer: Recognize and bind to antigens in lymph, interstitial fluid and blood
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