non specific responses to infection

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Where are lyzozymes found?
tears and nasal secretions
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What do lysozymes do to bacteria?
breaks down bacterial cell wall
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When does inflammation occur?
damaged mast cells release histamine
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What do the histamines cause?
vasodilatin of the arterioles nearby so more blood flows to area of infection
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What does it cause?
increased permeability of capillaries so more tissue fluid forced out
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How do phagocytes work in non specific immunity?
recognise antigens on surface of pathogens as foreign, they then engulf pathogens, lysosomes digest pathogens
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What is an interferon?
Cells infected with virus secrete a protein called interferon,
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what do they attach to?
membranes of surrounding cells
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What does this trigger?
cells to make their own antiviral proteins which inhibit synthesis of viral proteins
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What does it also stimulate?
virus infected cells to self destruct
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Card 2

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What do lysozymes do to bacteria?

Back

breaks down bacterial cell wall

Card 3

Front

When does inflammation occur?

Back

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Card 4

Front

What do the histamines cause?

Back

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Card 5

Front

What does it cause?

Back

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