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NURS 3366 Exam 2 Questions and Correct Answers the Latest Update and Recommended Version
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NURS 3366 Exam 2 Questions and Correct Answers the Latest Update and Recommended Version
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TestTrackers: Unlock Your Exam Potential! | Quality Practice Materials | Boost Your Confidence Today!NURS 3366 Exam 2 Questions and Correct
Answers the Latest Update and
Recommended Version
Innate resistance?
✓ natural- mechanisms born with
What are the 1st, 2nd and 3rd lines of defense in innate resistance?
✓ 1st- physical barriers (skin); immediate & nonspecific
✓ 2nd- inflammation; immediate and nonspecific
✓ 3rd- Acquired (adaptive) immunity
Acquired (adaptive) immunity
✓ also the 3rd line of defense
✓ -resist certain disease because of immunocytes
✓ -delayed and specific
What are immunocytes?
✓ lymphocytes- B and T cells
What is the 1st line of defense and how does it work?
✓ Skin!
✓ -sweat has antibacterial and antifungal properties
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Eye defense?
✓ 1st line of defense
✓
✓ -tears (Sjogren's syndrome) autoimmune that dries up lubricating fluids all over body not
just tears
✓ -eyelashes
Respiratory defense?
✓ mucus in nose traps bacteria
✓ cilia of bronchi cells sweep away foreign bodies
✓ cough reflex
Gastrointestinal defense?
✓ -saliva with protective enzymes
✓ -HCl in stomach
✓ gage reflex/vomiting gets rid of injurious agents
✓ -bowels
Genitourinary defense?
✓ -flow of urine washes away microbes
✓ -vaginal secretions slightly acidic-kills bacteria
What is the second line of defense- inflammation characterized by?
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✓ -swelling
✓ -heat
✓ -erythema (redness)
✓ -pain
✓
✓ -if not enough will bring in 3rd line of defense- acquired immunity
What are B and T cells?
✓ T lymphocytes- defend body by direct attack against invaders
✓
✓ B lymphocytes- defend body by differentiating into plasma cells, creating antibodies and
will now "lay in wait" and always "remember"
Antigens?
✓ proteins that can stimulate immunocyte reaction against them
✓
✓ -normal for body to respond to antigens that are foreign to our body, but abnormal to
respond to self antigens
Antibodies?
✓ IgG, IgA, IgE
✓ -proteins that respond with specificity according to type of antigen entering body
What is active acquired immunity?
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✓ person own immunocyte system developed the antibodies that established immunity
Natural active acquired immunity?
✓ persons plasma cells build up antibodies in response to microbially-induced sickness
Artificial active acquired immunity?
✓ persons plasma cells build up antibodies in response to receiving immunization
✓
✓ booster can be given for MMR because antibodies become weaker over time
Passive acquired immunity?
✓ given someone elses antibodies and did not develop the antibodies on their own
Natural passive acquired immunity?
✓ transfer of antibodies from mom to baby via placenta (MatAb antibodies cross placental
membrane from her blood to fetus and disintegrate by time baby is 2-3 months old) or
breast milk (some MatAbs can transfer during breast feeding but after baby stops
breastfeeding, MatAbs disintegrate)
✓
✓ temporary antibodies!!
Artificial passive acquired immunity?
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