Term
| Name the type of cells that form a physical barrier in the non-specific immune system. |
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Definition
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Term
| Where are epithelial cells found? |
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Definition
| skin, lining of respiratory and digestive systems |
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Term
| Name four secretions that are produced as chemical defences in the non-specific immune system. |
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Definition
| tears, saliva, stomach acid, mucus |
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Term
| Name the type of cells that release histamine. |
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Definition
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Term
| Name the chemical released by mast cells in the inflammatory response of the non-specific immune system. |
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Definition
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Term
| What two effect does histamine have on blood capillaries ? |
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Definition
| vasodilation / increasing diameter & increasing permeability |
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Term
| What can escape from the blood capillaries when they are more permeable in the inflammatory response? |
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Definition
| phagocytes and clotting elements (clotting factors ) |
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Term
| Name the type of white blood cells that can recognise, engulf and destroy pathogens. |
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Definition
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Term
| Name the process by which phagocytes engulf and destroy pathogens. |
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Definition
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Term
| What structure do phagocytes contain to allow them to destroy the pathogens they engulf? |
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Definition
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Term
| What chemicals are contained in the lysosomes of phagocytes? |
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Definition
| (strong digestive) enzymes |
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Term
| What is the name of the chemicals releases by phagocytes to signal to other phagocytes? |
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Definition
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Term
| What is the function of cytokines that are released by phagocytes in the non-specific immune response? |
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Definition
| to attract other phagocytes to the site of injury |
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