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Exam 2-NURS 3366; Questions and Answers 100% Solved
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Exam 2- NURS 3366; Questions and Answers 100%Solved
Innate resistance? Correct Ans-natural- mechanisms born with
What are the 1st, 2nd and 3rd lines of defense in innate resistance? Correct Ans-1st-
physical barriers (skin); immediate & nonspecific
2nd- inflammation; immediate and nonspecific
3rd- Acquired (adaptive) immunity
Acquired (adaptive) immunity Correct Ans-also the 3rd line of defense
-resist certain disease because of immunocytes
-delayed and specific
What are immunocytes? Correct Ans-lymphocytes- B and T cells
What is the 1st line of defense and how does it work? Correct Ans-Skin!
-sweat has antibacterial and antifungal properties
Eye defense? Correct Ans-1st line of defense
, Exam 2- NURS 3366; Questions and Answers 100%
Solved
-tears (Sjogren's syndrome) autoimmune that dries up lubricating fluids all over body not just
tears
-eyelashes
Respiratory defense? Correct Ans-mucus in nose traps bacteria
cilia of bronchi cells sweep away foreign bodies
cough reflex
Gastrointestinal defense? Correct Ans--saliva with protective enzymes
-HCl in stomach
gage reflex/vomiting gets rid of injurious agents
-bowels
Genitourinary defense? Correct Ans--flow of urine washes away microbes
-vaginal secretions slightly acidic-kills bacteria
, Exam 2- NURS 3366; Questions and Answers 100%
Solved
What is the second line of defense- inflammation characterized by? Correct Ans--swelling
-heat
-erythema (redness)
-pain
-if not enough will bring in 3rd line of defense- acquired immunity
What are B and T cells? Correct Ans-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? Correct Ans-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
, Exam 2- NURS 3366; Questions and Answers 100%
Solved
Antibodies? Correct Ans-IgG, IgA, IgE
-proteins that respond with specificity according to type of antigen entering body
What is active acquired immunity? Correct Ans-person own immunocyte system
developed the antibodies that established immunity
Natural active acquired immunity? Correct Ans-persons plasma cells build up antibodies in
response to microbially-induced sickness
Artificial active acquired immunity? Correct Ans-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? Correct Ans-given someone elses antibodies and did not
develop the antibodies on their own
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