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10 Cards in this Set
- Front
- Back
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What is in your respiratory tract (airways) and why are they there?
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Your skin, plus hairs and mucus in respiratory tract (airways) stop nasties getting in.
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What do your cells do if your skin is cut?
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If your skin is cut, tiny bits of cells help your blood clot quickly to stop anything else getting in.
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What happens if a pathogen got through a cut?
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If something does make it through, your immune system kicks in.
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What is the most important part of your immune system?
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The most important part of your immune
system kicks in. |
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What are the three lines of attack that your body uses when it
becomes an invading pathogen? |
.Consuming Them
.Producing Antibodies .Producing Antitoxins |
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What can the white blood cells do to the pathogens?
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White blood cells can engulf
(surround) the pathogens and digest them. |
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What does every invading pathogen have on its surface and what are they called?
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Every invading pathogen has unique molecules on its surface. These molecules are called
antigens. |
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What happens when your white blood cells come across a foreign antigen (i.e. one they don't know)?
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When your white blood cells come across a
foreign antigen (i.e. one they don't know), they will start to produce antibodies. |
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What do the antibodies do to the pathogens?
The antibodies produced are specific to that type of antigen... why? |
Antibodies lock onto and kill the invading pathogens. The
antibodies produced are specific to that type of antigen so they won't lock on to any others. |
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What do antitoxins do?
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These stop toxins produced by invading bacteria.
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