White Blood Corpuscles: Leucocytes are colourless, nucleated, often amoeboid cells found in blood (and lymph) which are devoid of haemoglobin and are capable of coming out of blood capillaries through the process of diapedesis. They are rounded irregular cells capable of amoeboid movement. They are bigger in size and less in number than the Red Blood Corpuscles (RBCs). Their size varies from 12 to 20 μm and their average total number from 6000 to 8000 per cubic mm of blood. However, their count may increase (leukaemia) or decrease (leukopenia) depending upon the abnormalities. White Blood Corpuscles have a comparatively shorter … Continue reading White Blood Corpuscles (WBCs) or Leucocytes