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Respiration and Circulation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYRespiration and Circulation4 Marks
Question
Why and when do the leucocytes perform diapedesis?
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Answer

  1. Diapedesis is the movement of leucocytes through the wall of blood capillaries into the tissue space.
  2. Leucocytes perform diapedesis as an important part of their reaction to tissue injury or infection.
  3. This process forms the part of the innate immune response, involving recruitment of non-specific leucocytes.
  4. Monocytes also use this process during their development into macrophages.
  5. Diapedesis helps leucocytes to perform their functions like phagocytosis, production of antibodies, secretion of inflammatory response chemicals, etc.

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