Question

Characteristics of lymphocytes

Answer 1

Microscopically, in a Wright's stainedperipheral blood smear, a normal lymphocyte has a large, dark-staining nucleus with little to no eosinophilic cytoplasm. In normal situations, the coarse, dense nucleus of a lymphocyte is approximately the size of a red blood cell (about 7 μm in diameter).[3] Some lymphocytes show a clear perinuclear zone(or halo) around the nucleus or could exhibit a small clear zone to one side of the nucleus. Polyribosomes are a prominent feature in the lymphocytes and can be viewed with an electron microscope. The ribosomes are involved in protein synthesis, allowing the generation of large quantities of cytokinesand immunoglobulins by these cells.
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Answer 2

Answer :-

"Lymphocytes" can be defined as the the smallest leucocytes, slightly larger than the Red Blood Cells (RBCs).

Extra Information :-

• Lymphocytes are small, non-phagocytic cells with round, dense nuclei and a small amount of cytoplasm.

• Lymphocytes are the second most common leucocytes in blood.

• Lymphocytes make up about (20-30)% of White Blood Cells (WBCs).

• There are two functionally distinct types: "T-lymphocytes" and "B-lymphocytes".

• Lymphocytes play the central role in all immunological defence mechanisms of the body.

• Lymphocytes protect the body from the action of pathogens.

• Lymphocytes are responsible for the production of antibodies.