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NUR 211 Test -1 - Immunity with 100- correct answers (latest update).
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NUR 211 Test -1 - Immunity with 100- correct answers (latest update).
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NUR 211 Test #1- Immunity with
100% correct
answers (latest
update)
What is the function of the immune system? - answer Defends and
protects the body from infection/antigens
Removes and destroys damaged or dead cells
Identifies and destroys malignant cells, preventing their further
development into tumors
What is the nonspecific response by the immune system? - answer
Response is the same regardless of the antigen
Prevent or limit entry of any foreign substance into the body
Barrier protection- Skin, mucous, tears, gastric secretion, etc.
, Inflammation- brings fluid, dissolved substances and blood cells to
interstitial tissues
What is the specific/immune response to the immune system? -
answer Antibodies respond to specific antigens
Lymphocytes- T cells, B cells and Natural Killer Cells
Primary immune response- 1st exposure takes 3 days
Secondary immune response- subsequent exposures trigger
memory cell response- 24 hours
What is a leukocytes and what is the function of it? - answer A white
blood cell; primary cell for specific and non-specific immune
response
From stem cells in bone marrow
Attack and destroy anything foreign
What is the normal range for WBC?
What is the name and range for a WBC below normal?
What is the name and range for a WBC above normal? - answer
Normal number :4,500-10,000 cells/mm3
Leukocytosis - > 10,000 cells/mm3 is a sign of infection- leukocyte
numbers increase to fight infection.
Leukopenia- decrease in the amount of circulating leukocytes; below
4,500
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