Specific immune response: phagocytosis, T and B lymphocytes

Specific Immune Response

Phagocytosis

Lymphocytes

Macrophages And Neutrophils

pathogens antigen is recognised by phagocyte (as non human) using antibodies

the phagocyte engulfs the pathogen and encloses it in a phagosome where it combines with a lysosome to form a phagolysosome.

Neutrophils

Macrophages

The pathogen is now digested and destroyed. (macrophages put the pathogens antigens on display around its body in the MHC)

B lymphocytes

Mature in bone marrow

T lymphocytes

Mature in thymus gland

T helper cells

T killer cells

T memory cells

T regulator cells

Produce interlukins that stimulate activity of B lymphocytes

Produces perforin that creates holes in a pathogens membrane, killing it.

live for a long time . If they meet the same pathogen a second time they rapidly create clones of T killer cells.

Act as suppressors for the immune system. they stop the immune response once a pathogen has been eliminated

Plasma Cells(make antibodies)

B effector cells (make plasma cells)

B memory cells (just like T memory provide a quick secondary response)