Q- Describe various types of leucocytes found in human blood.
Answer- Leucocytes are amoeboid, nucleated and whitish blood corpuscles. The leucocytes are large in size. They are about 8-15 μm but are less in number as compared to RBCs.
On the basis of cytoplasmic granules the leucocytes are mainly of two types:
1. Granulocytes
2. Agranulocytes.