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Explain why does a cut in the skin becom...

Explain why does a cut in the skin become red and swollen?

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Skin becomes red and swollen due to inflammation. This is body.s natural defense against injuries. So body responds by sending WBCs to the site of cut, which destroys bacteria. This produces symptoms of inflammation including redness, swelling and pain. It is a healthy response to an injury.
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BETTER CHOICE PUBLICATION-HUMAN HEALTH AND DISEASE-SHORT ANSWER TYPE QUESTIONS
  1. Explain why does a cut in the skin become red and swollen?

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  2. Give full form of 'ELISA'. Name two diseases for the detection of whic...

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  3. List at least five symptoms of metal illness.

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  4. Differentiate infection and infestation .

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  5. Differentiate between Benign tumour and Malignant tumour.

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  6. Why is using tobacco in any form injurious to the health? Explain.

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  7. What are the various routes by which transmission of human immuno-defi...

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  8. Differentiate between congenital and acquired diseases.

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  9. Differentiate communicable and non-communicable diseases.

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  10. Differentiate between B-cells andT-cells.

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  11. Explain the differences between active and passive immunization.

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  12. What are sedatives and tranquillisers '? Give two examples.

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  13. What are opiates? Give two examples.

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  14. What are stimulants? Give two examples.

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  15. Name three bacterial diseases and mention their causative agents.

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  16. What are hallucinogens ? Name twohallucinogens.Write their sources.

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  17. What bad effects had tobacco on respiratory system?

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  18. How do humoral and cellmediated immune system differ from each other ?

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  19. Expand GALT and HIV.

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  20. Expand MALT and NACO.

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