Lymphocytes

Lymphocytes

B Lymphocytes

T Lymphocytes

T helper cells

T killer cells

T memory cells

T regulator cells

Plasma cells

B memory cells

Circulate in the blood, manufacture and release the antibodies

Remain in the body for a number of years, act as immunological memory

Release cytokines (chemical messengers) that stimulate the B cells to develop and stimulate phagocytosis

Attack and kill host body cells that display the foreign antigen

Provide long-term immunity

Shut down the immune response after the pathogen has been successfully removes. Also involved in preventing autoimmunity

They are white blood cells, with a relatively large nucleus and are the carriers of antibodies