Question

What is the difference between a leukocyte and a lymphocyte?

Answer 1

Leukocyte is just another name for white blood cells. On the other hand , lymphocytes are one of the types of white blood cells or leukocytes.

Explanation:

Leukocytes or white blood cells are divided into two groups on the basis of presences of granules in their cytoplasm.

1. Granulocytes `to` neutrophils, basophils and eosinophils.
2. Agranulocytes `to` monocytes and lymphocytes.

So, lymphocytes are one of the five types of WBCs and belong to granular leukocytes.
Lymphocytes mainly constitute T cells, B cells, and natural killer (NK) cells. Their most salient role is in immune system.

Thus we can say: All lymphocytes are leukocytes but all leukocytes are not lymphocytes.

Hope it helps...