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9 Cards in this Set
- Front
- Back
- 3rd side (hint)
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NK cells are the only lymphocyte members of the innate defenses, T/F |
T
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NK cells survive for about how long? |
A week
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NK cells are mostly found in the ____________ unless called into the tissues to meet an attack. |
blood vessels of the spleen and liver |
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NK cells can be summoned to the site of an infection by ______ produced by other immune system cells |
cytokines |
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NK cells KILL invaders by releasing _______ that induce _______ in target cells |
cytokines, apoptosis
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NK cells may also kill invaders by releasing ______ cytokines that inject destructive enzymes into target cells. |
perforin
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think "inject" |
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NK cells can kill cancer cells, virus-infected cells, parasites, fungi, and bacteria T/F?
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T |
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B/c NK cells recognize targets differently than cytotoxic _____________ (adaptive immunity) they provide a different additional avenue to attack virus-infected cells. |
T lymphocytes
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NK cells are the only _______ members of the ______ defenses. Why is this? |
lymphocyte; innate; They don't recognize and react to foreign cells the way other lymphocytes do. |
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