Lymphocytes

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The image above contains two neutrophils and a small lymphocyte. Note how the lymphocyte contains a scant amount of basophilic cytoplasm, and the nucleus has a slight indention (see image below for a closeup). Lymphocytes are the primary circulating leukocyte (WBC) in cattle, sheep, goats and pigs. The lymphocyte is the only leukocyte that may return to the blood from the tissues.

lymphocyte