7.1. Introduction

Unit 7- Lymphocytes
7.1. Introduction
A lymphocyte is a type of white blood cell that present in the vertebrate immune system. There are two main types of lymphocytes are present in fish they are B-cells and T-cells. In teleost fish, the head kidney is an important source of B cells, B cells can also be found in spleen of the adult fish. The T cells can be found in thymus which is a primary lymphoid organ in fish. The primary function of fish lymphocytes is to executive the specific immune response against the antigen, lymphocytes may even act as phagocytic cells.
Last modified: Thursday, 21 June 2012, 4:37 AM